I've played it since Konamix
I used to do it in the dorms with my door open and people were amazed at the "white kid playing DDR!!" I was pretty good to in my day. I've fallen out lately because I've moved into an apartment and I'd piss off the nighbors downstairs since this is an old old building with wood floors jumping around on the mat.
DDR rocks. It's good cardio if nothing else.