I thought it was great. I love having C-Gear battles with my friends because it quick, easy, and you can use any level of Pokémon and they become Lv50
I liked the interface I guess but not having Wifi or anyone to do IR things with it was pretty useless to me overall.
i agree with doima. it was a nice idea but since i don't really play with others i never really used it. it would have been better to have it as a key item you can set to y. myself, i actually preferred the poketch, and helping my bf play through diamond, i realize how much i miss it!
I didn't use it for anything apart from changing the CGear skin and dream world. Having a different CGear skin was cool, too bad Japan gets all of the cool ones. </3
I just used it for the Dreamworld. I did enter a friend's entralink like once. And I also changed the skin a couple of times, not much to pick from though.