Ghai, the experience is different for everybody, I suppose. But for me personally, I loved it and thought it was a lot of fun!
Kaze Saffire, They play all sorts of music that you can do ballroom dancing to, mostly songs from anime and video games. At the 2012 dance, they threw in a few wildcards-- Party Rock Anthem, Ponponpon, and the opening theme to BBC's Sherlock. But of course, they mostly play formal stuff. xD