You won't regret it. But if you're lazy then don't bother. Like the title would indicate, this is a very sweaty game. The worst would be the infamous Paranoia 180, so make sure you've got extra shirts and a towel on hand. And once you've beaten all the songs, you've really only just begun.
Replay is nearly infinite.
I mostly play this game in the arcades, and I've literally spent hundreds on it. This is the coolest game out there, hard to come by, but well worth it. And with a Dance Pad controller, it gives us hours of fun exercise. Since it's arrival on the market in '98, it has spawned 4 separate mixes, two append disk's, and a bunch of cheap rip-off's, but none surpasses the original.