It's relatively heavy and makes the nunchuck feels off balance. Doesnt come with a wrist strap which IMHO is important if you go wireless.

I have 3 types of wireless nunchuck- This unit, Nyko Kama and some China brand unit. I prefer the Kama in terms of ergonomics. Cant comment on reliability, battery life etc just yet cause they're all relatively new (about 3 month old) and they work fine so far.