If you're looking for a pure sport quad I'd look elsewhere. The don't handle, jump, or launch like a traditional sport quad.
Cons:
Heavy for a sport quad
big for a sport quad
cvt tranny
shaft drive
stock shocks are very stiff
you'll be spanked by 450's all day long unless you do a bit of work
Pros:
With the right bolt on's and tuning you can get some really nice power without going into the motor
CVT tranny
shaft drive
size is great if you're a bigger guy
they're alot of fun to ride