I used hobbywing before, must say for the money can't ask for more. It is a cheapy but it performs decent, not going to compete or anything with it but you will have fun with it. The part you (chappell943) are refering to will not fit 1/10 scale, the HPI part will. You can find a hobbywing ESC setup for 1/10 scale pretty cheap too.

Happy shopping!