Post is a little old but there doens't seem to be much out there for user feedback. I've had one for a couple days now, so it's very early in the learning curve and I'm sure I'll learn more tricks etc. and modify my own process/technique but these are my early impressions after sharpening a few knives.
Impressive build quality, but for the price of course it absolutely should be. Assembly, adjustments, etc. are easy, and the unit is very solid and stable but light enough to still easily move around. Everything seems well nicely laid out, the stone storage is a nice touch as is the built in "wall" to rest the arms on, just little things that add up to a very nice user friendly package. I didn't get a unit with a case, but that saved me $150, and to me the case just isn't worth $150 I won't be dragging it around in the field etc.
At first I was really disappointed with the clamp, and I still consider it the units biggest weakness and the #1 thing that should be improved at this price point. I'd say without rigging up something (foam tape, rubber pads, etc.) it only holds about half my blades really solid. If the knife does not have an even flat on the blade at least the length of the jaws it simply will not hold rock solid. That being said since you are stroking away from the edge without a lot of pressure once I started sharpening it's pretty clear you don't need as much clamping force as you think to keep the knife from moving. I even took one of the knives that I felt wasn't clamping very well, used a sharpie to outline it's position, aggressively sharpened it and it never moved. That said of course I'd much rather have more blade security than less. I'd say now with some mods it will probably hold 80+% of my knives solid enough to sharpen and some of those won't work in any clamp. A big marketing point of the system is the speed/efficiency of this new clamp, so if you have to use foam tape, rubber pads, etc. it's not much faster than a manual clamp and still doesn't hold as well on blades with a full flat grind or distal taper as a simple lansky clamp does. That's not to say that I think a lansky sharpener can do anywhere near as good, fast of a job sharpening, or that it's just as good as the WE I absolutely do not. However, the lansky clamp does hold more solidly on a wider range of blade shapes because it's jaws can be angled to match full flat ground blades. I'd gladly give up some speed to improve how well it clamps without having to use tape/spacers. I don't think just adding more clamping force would really help, though it would be a nice touch if it was adjustable. Perhaps what is needed is the ability to use some type of clamp jaw inserts that would provide more grip than the small 1/4" square smooth aluminum contact pads it has now. Perhaps a high durameter rubber or grippy plastic jaw insert would attach to the jaw face, similar to various jaw caps they make for machinists vices. That way there could be different easy to change jaw inserts for full flat ground, distal tapers, thicker/thinner blades, etc. and it would be relatively cheap to provide as a set. While you can spend another $140 on the 1/16" and 1/4" jaws but it still does not address the core issue of not being able to clamp full flat ground or distal taper blades quickly, solidly, without mods. I'm already thinking of experimenting with something similar using the wider 1/4" jaws.
I'm a little disappointed in the effective lower angle range on smaller blades. I usually never use anything less than 15 degrees, most my folders are 17-18. With smaller knives that do not extend very high out of the clamp, I was unable to get below 18 degrees without hitting the jaws with the stones. The first knife I tried was an old paring knife, and even using the taller slots in the jaws so it was only engaging about 1/8" of the blade, I was just nicking the jaws with the stones at 17 degrees and had to go out to 18 degrees. On taller blades it's not an issue at all, a large chefs knife that is say 1" above the jaws can easily go all the way down to 14 degrees with room left over. For most mid sized folding knives etc. it probably can typically get down to 16 degrees or less, and you can of course spend another $80 to get the low angle jaws. Myself, I'd gladly exchange 2 degrees up at the steeper end to get the unit to go down to say 12 degrees. Not that I'd ever use 12 degrees, but it would then allow ~15 degree angles on smaller blades without buying another adapter and I can't ever see myself using 25-27 degrees.
Now for the sharpening, this is where my feedback is probably way too early to be of a lot of use and it certainly is not helpful for any type of long term eval. I've watched all the videos I could find, tips/tricks threads, WE's FAQ etc. and honestly the process is pretty easy as long as you spend the time with the first stone to make sure you've got a nice even burr forming and take your time as you get used to the sharpening motion. I've probably only done 10-12 knives so far mostly mid level kitchen knives and a couple beater folders. I think I'm just starting to get out of the stone break in period. When I first started even going out to 1000 grit I end up with a nice even edge, but very toothy, and not shaving sharp but it would go through fruit/vegetables etc. super easy. A few strokes on a 600 grit sharpmaker and they were hair popping sharp. 10 or so blades in and I can tell the edge is more polished/smoother when I finish with the 1000 grit but it's still not shaving sharp. So I think the diamond stones are still not fully broken in and just too aggressive to really create a polished hair popping sharp edge. On that note, it seems to me that if the stone break in is that much of a process, perhaps it would be better to give users a 600/1000 grit ceramic stone instead of the 800/1000 grit diamond stone in the kit. That way they could get super sharp knives from the start without having to work through the stone break in or buy additional ceramic/stropping stones. I will say the 100 grit stone really takes metal off scary fast, profiling and getting a full even burr is fast and effortless even compared to a new Atoma 140 on an edge pro. I'm sure as the stones break in that will slow down a little bit but that will be a welcome trade off to get a more polished edge. I actually bought the 50/80 grit stone but as fast as the 100 grit cuts I think it will be a long while before I ever use it. It's also nice to be able to sharpen both sides of the blade at once, and that it's so easy to switch between stones, once you have knife clamped, the initial edge profile and burr set, you can really progress through the rest of the stones fast even going slow as a new user. The quick angle setting is really nice, even though I'd imagine for a lot of my knives I'll be using my standard 17-18 degrees.
The other thing I'd like to see improved is more protection for the moving parts against metal shavings. Specifically in the clamp area, and also the joints the arms move on. I used some packaging tape to cover the clamp cam/jaw interface and that worked pretty well. It's probably not a huge deal, but certainly at first when the stones are breaking in and loosing diamonds it's probably best to avoid getting that abrasive to get into various moving parts if possible. I made sure to blow the unit out well after I was done with a session, but I think I'm going to give some thought to finding a better way to protect those areas from debris. They used to use neoprene sleeves for suspension forks/shocks to keep debris out of them, they were stretchable and allowed parts to move so that might work well. One issue with using tape was it hindered the jaw arms from moving but that's only an issue if you have to preposition the blade and/or remove it.
Overall I already like it significantly more than my Lansky, Edge pro, or work sharp, and I should since it costs more than all of them and their accessories put together. The Edge pro also does a very good job, but it's messy, sharpening takes much longer, and I seem to get more consistent results on the WE, though after some practice I also was able to get some really great edges on the edge pro as well. However, there are some blade shapes the WE won't hold very solid that can easily be done by the Edge Pro or Lansky as well. The work sharp will still probably be my standard for my kitchen knives, it's just silly fast to put a quick edge on them, and then a few strokes on a sharpmaker and they are all razor sharp.