I ordered the same 10.5 combo from tower. Had a steering servo that shorted internally and ESC never came back on. Tower exchanged the part no questions asked. After that a customer support guy from oppenhobby called me and had me explain exactly what happened and told me if I had any problems give them a call. Getting the replacement ESC/motor combo in the mail today so hopefully it was just a bad egg. Anyways great customer support from both tower and open hobby on this one.