This is a great piece of kit, it looks nice, fits well on my TV, and despite what some people say, I find the nunchuk holders very useful. It charges quickly, and the battery life is very satisfactory.
However, there is one problem. The battery packs fit in very tightly, and i mean very. They go in ok, but there is a little gap (between the pack, and the wiimote), where they are pushing out. Also, if you try to take the packs out, beware. I took my pack out, and it took a worrying amount of force. The second time i took it out, on the battery contacts broke off, and now it is useless.
Overall, great product, just don't take the battery pack out, unless you really have to (if you need to sync it, just press 1 and 2 at the same time).