My dad rides a GSX 550 fanner and its a solid sled. Definitely has some get up and go, but not nearly the amount of a liquid cooled. If you only ride on this sled you wont notice a difference, but if you jump back and forth between riding a liquid cooled and a fan sled you will be wanting a bit more. The engine is super reliable, has had ZERO problems and that's just basic maintenance and treating your machines right. The biggest advantage is in the woods you really can put some space on people because its a light sled and easy to throw around. Only thing I would suggest is putting studs on the track. For some reason the sled can get a little squirly if you're really on it, and ive noticed that the few times I ride it. Overall its a solid sled