Long time lurker, not many posts. Here's my 0.02. Thought I'd throw in some love for the wissota. I have 3 boys, I skate 2-3 times per week and have an outdoor ice rink. So a skate sharpening machine was needed. I picked up the Wissota at the beginning of last year. Yes the website is very campy, the machine doesn't have much glitz, but it flat out works. Call them up and chat with them as well. Changing the ROH is a piece of cake. The wheel does spin opposite than most, but I've never done skates on a different machine. I did my research and the wissota was the only think that fit my budget at the time. If you know what you're doing it'll work fine. I would definitely have considered the new blackstones as well, but they weren't available at the time.