Using it for my translation projects currently, I also designed the front/main page and did a few sidebar tweaks
It would be great if more people used it and it had a lot more content though - I have a vision of it becoming an information repository for all things GBA/NDS (and Wii possibly as well) related.
One thing I wish it had was the ability to add content to articles from easy to use forms (mainly for compatiblity lists) rather than doing it by hand. It is possible, but takes quite a bit of work from what I gather.
Oh and the new extension which prevents the spam from anonymous users is genius, having to undo that stuff every day got very tedious when I was doing it. I understand it was samutz's idea, so well done on that.