I will say this----I have used an Edge Pro, and I own a Wicked Edge (very recent acquisition) and both are fine systems---I have to give the nod to the WE just in terms of cleanliness of the system and the consistent flatness of the stones, as mentioned. However, the thing is that I actually KNOW how to sharpen free hand and am rather good at it, and so--essentially--I have a system that allows me to do exactly what I was able to do before. It's not like that's a surprise and I'm not going to get rid of it; it's extremely well made, attractive, and honestly will allow what was already a fairly mindless activity to become even more so. I would rate the thing as being very similar to a magazine loader if you already know how to sharpen--just a tool that takes a little bit of the pain out of things (referring to cramped hands, in this case, not swollen thumbs
) and is especially nice if you have lots to do.
That said, though, (and I went ALL out with the super-fine stones all the way down to the super coarse) the thing can't hold a candle to my $120 Delta belt sander as far as metal removal. From ceramic belts at 40 grit down to leather belts loaded with compound, I can take a big, 1/4" Busse knife (as mentioned by smiley500 above) that has absolutely no edge left and grind an even, high-polished edge bevel that will cut hairs above the arm inside of about ten minutes, and inside of about two minutes if the bevel isn't in bad shape before I start. And for those who'd cry out that I'm removing too much metal, when I sharpen (not reprofile, but sharpen) knives on the thing, I use only the leather belts--I bet I'm removing less metal than you are, and I also can do convex as well as flat.
That, however, did take a bit of learning to do (not just to hold the angles but to keep the knives properly cooled throughout) and I'll admit that even though I had about three dozen cheap practice machetes under my belt at the time, the very first time I held a custom knife up to that sander was a bit of a heart-check. Now, I just tear into the things knowing that it'll be fine, but practice always breeds confidence.
So, overall, my impression of the WE system is that the thing is extremely well made, works as advertised, and I highly recommend the granite base because, you know, the thing just looks classy as hell. If you are already a very capable sharpener, don't expect to hear angels sing when you start using it. If, however, effective sharpening has largely eluded you to this point, I think you'll greatly appreciate the results you will get with it, and will quickly forget the money spent--which is pretty much true of all quality tools.