It seems good if you want a wireless control system for motors.
If wired control is ok, then pick your favorite motor controller, and use a Thrifty Throttle or Pulsinator to control it.
http://www.andymark.com/Thrifty-Throttle-p/am-2936a.htm
http://www.chiefdelphi.com/forums/sh...ght=pulsinator
If you are going to drive, and want to turn, the Cheap & Dirty allows you tank drive. That would be harder to do with the Throttle or Pulsinator.