Great add-on for the money
This is really just a glorified pedometer but it does make you move around. I've only used it with Links Crossbow so far but it gives better control of movement than the nunchuck alone. Use the nunchuck for direction & jog on the spot with the wii jog to control your speed. Check the number of steps & calories burned at the end to see how much exercise you did while playing.
It can take a bit to get used to - kept using just the nunchuck to start - but it soon becomes just part of the game.
Highly recommended if you want to burn off more calories or get a bit fitter - (every little helps!)