WE, KME, EP etc. had them all and they're all good systems, each have their advantages / disadvantages IMO. For me the main things I didn't like about the WE is the mounting position as it was hard on my neck having to look at each side, having a razor sharp knife in the upwards position is not something I care for, and on larger knives which required the arms to swing out longer away from where the knife is clamped I always got slightly uneven bevels unless I really messed with the depth of the knife and angle in the clamp. The first one I got years ago I had a large chefs knife mounted in it (very thin blade) and hard to see when looking directly down on it and made the mistake of reaching over the top to grab something and buried my hand into the edge. Luckily I had just started sharpening so the cut wasn't too bad. I have a lot of time on the WE and the EP, I can get basically perfect hair whittling/topping edges on the EP as well as the WE. IMO just comes down to personal preference.