Disappointing service

Very surprised by receiving the package because given the price I was expecting a smaller quad !! Battery hold a charge well
Reverse is really convenient, no need to go down and pull back.
Only negative point: the steering angle is tight
+ Very disappointing service: 6 months after buying a motor HS, I contact the manufacturer who replied:
"HELLO,
the engine of the problems are in charge of the customer (itulisation) you can order a left engine 20 + 10 postage.
Sincerely "

If the motors are not guaranteed, while the manufacturers warranty ??????
very disappointed with this purchase and AMAZON should better select its suppliers