The Edge Pro makes picture perfect edges, no doubt about that. However, I feel the system is a bit too "high maintenance" for me. Being a lazy person, I don't particularly enjoy having to go through the whole routine of making sure the angle is actually at 15 degrees per side(due to the fact that the largest flat angle the blade is resting on is usually not a 90 degree angle), the constant watering, the need to flatten the stones, the need to retape the table as the water loosens the painter's tape or the stone eats away the tape. Nope, definitely don't want to go through all that every time I sharpen a knife.
My current sharpener for the past few months is my WorkSharp Knife & Tool Sharpener. The included belts are quite limited and I don't even touch them anymore. With a full range of aftermarket Micro-Mesh MX belts(the biggest kink in the system) however, I have complete control over the grit and sharpening speed of the system. I can simply use the fine grit belts for touchups, or go over to the coarse belts for reprofiling(have to watch the heat carefully though). I found the system to be more forgiving of mistakes than the paper wheels, and my edges looked much prettier as well(though not as perfectly pretty as the Edge Pro admittedly). And you DO need practice to avoid rounding off the tip or making an ugly grind, I am now confident enough with the system to use it to sharpen $400+ knives like my Galyean Pro Turbulence(did nick the handles a little though), my Large Sebenza 21 with unique graphic and cabochan inlay, my XM-18, my SR-1, my Yuna Mini Hard 2, and my R.J. Martin Overkill in S110V. Speaking of which, I damaged the tip section slightly on that Overkill when I accidentally cut into the concrete floor, and it took all of 5-10 minutes to fix that up and bring it back to a mirror polish. Reprofiling S90V takes maybe twice as long, but I suspect resharpening a dull edge would only take the standard 5-10 minutes.
So long as you closely watch the burr formation, there shouldn't be any concern of excessive metal removal. And I never found heat to be any more of a problem than on my paper wheels. It's not quite as loud as the wheels, and it takes up about only 1/3 of the space(a fact no one can argue). Every edge will also be at least slightly convexed, though I sincerely doubt there's much difference in edge retention between a V grind, mostly because the belts don't have enough flex to make it really convexed.
