Instruct: Classify an Amazon review into positive or negative sentiment.
Query: The only bearing I will buy from NOW ON!

To all the serious roller derby players out there, I HIGHLY recommend this bearing. I am a big woman (6' w/skates and 200lbs) I cannot believe how fast I can skate on these bearings. They are quiet, smooth and like I mentioned earlier, super fast. I'm assuming the speed comes from the 6 ball setup, less friction perhaps? Anyhoo if you are a roller derby player like myself (since 2006 to be exact) you should pony up the dough and buy a set of these bearings, you wont be sorry!