"From the standpoint of an electrical engineer, this remote is easily one of the best bargains for model control I've seen in a while:
1) Two Rocker Switches - for enabling forward, stop, and reverse on two different, independent control line schemes. Each switch also has axle-holes for creating your own custom "joystick".
2) Rotation Reverse Switches - to enable instant reversing of motor rotational direction without needing to re-gear a model.
3) Signal Channel Selection - allowing the use of up to four remotes per model, for a total of 8 rocker switches to enable various motor controls.
4) LEGO System Form Integration - with a plate-style bottom, and Technic hole-beams on each side, this enables building a custom controller to suit the builder's and model's needs and style.
The only drawbacks are the battery life (which is good, but less than I would have personally liked) and the range (control gets fuzzy about a room-length away), although the range could be low batteries, also...
However, for the amount of easy-to-learn and understand features, easily configurable as needed, even on the fly, this little remote is definitely an awesome value if you want to control mobile, working models. :)"