Ive also got one of these, got the kit version. Again the only real complains are that the instructions are shockingly bad, you dont realise that you have used all the incorrect screws until your 99% complete and the stock motor is pants, ive upgraded it to an orion 21x2 which is much better and more responsive.
All in all, a good little basher with plenty of scope in the future for upgrading. get one, you wont be disappointed
Dave, (if you see this. what are your prices on the steel spur gear for the MS)
Gibzy