Is this Wiimote charging station + rechargeable battery pack any good?

http://www.amazon.com/NYKO-TECHNOLOGIES-87000-Charge-Station/dp/B000LFJNF2/sr=1-11/qid=1171647766/ref=sr_1_11/002-9196669-3076835?ie=UTF8&s=videogames

Does it even work?  Its just an AA charger that charges the Wiimote through a port on the bottom of the battery pack.  So you don't remove the casing, you just play all the games with the charging contacts on the bottom of the Wiimote.  I'm reluctant to but third party stuff, but if it works, it works, and I might as well use rechargeable batteries that don't have me pulling off the casing and worrying about the batteries being 1.2volts instead of 1.5v.  Which can theorectically screw it up.  I'd appreciate an answer if you own it or have seen something similair that works!  Thanks in advance.