I bought a 2012 ATA150D atv and aside from a few glitches in the beginning, the machine has been bringing nonstop fun since the wrinkles got ironed out (nature of gy6 engine is excessive vibration which causes hardware to come loose for the first month or so). Replaced some nuts with locking nuts and padded the carburetor from rapping against the frame on acceleration (took 8 months to find the source of the rattle it caused). Also changed the airbox to a better fram air filter because original allowed too much dust into the engine. Greased all joints well and rust checked the entire frame, and let me tell you this machine is running top notch, and has extra power from the new air filter. I recommend these machines with the caveat that you much maintain a very close relationship with the seller for the first month or so to insure brakes are tight (my rear brakes fell apart completely because of a bolt rattled loose)N' Make sure to tighten all bolts the first few rides they soon seize