I have got a Pi cassette for more or less one year, if you plan to buy one just don't do it. The cassette is great so far it's light and rolles perfectly, the only thing is... the body breaks. I don't ride heavy street or throw my bike around. I mean I'm just a regular rider not doing the big stuff and a hub like that should be strong enough to last a few years. I have send it back to WTP and I hope they will be giving me a new one, if they will not that's pretty poor for a big company like that.

Finally I got it back after two weeks or so. I am happy again and get to ride more, so I think it's ok to have one of these little cassette hubs from WTP.... BUY ONE

Ok, WTF?!? the f****** axle broke today. right after an icebonk, are you kidding?!?

DON'T BUY IT! I wont change my mind again, this is it! f*** this hub!