Go buy Dance Central right now if you have kinect. DO IT.
The Good - Awesome soundtrack, great graphics, break-it-down mode is very helpful if you're not doing so well in a song, leaderboards are a great way to keep coming back to the game.
The Bad - NO online multiplayer. No career mode.
Presentation - There's sadly no career mode in a game like this. There could have been something cool inspired by the Step Up movies, but even without the career mode Dance Central is still a blast to play.
Game play - The game play is the highlight of Dance Central. First there are 32 songs (a little low, but the songs are so fun that you'll want to play them ALOT) that include artists like Lady Gaga, Beastie Boys, Soulja Boy (i don't like him, but his song is kinda fun to play actually), Bell Biv DeVoe, Salt-n-Peppa, and many more. How you play is quite simple actually. All you have to do is mimic the movements that your pre selected Dancer is doing.
The Verdict - Even the game does feel a little rushed, Dance Central is a blast to play.