I thought this was going to be more of a guy game, but I finally tried it and it was really fun.  My fiancee and his guy friends even said that the three girls that played it that night for the first time did better than they did on thier first try. 

The game is great for hand eye coordination.  I found that even if you don't know a song, as long as you can follow the colored light cues, you do fine.  A great feature is you can play with others either in the same room or online with a friend.  When you play another person, you also have the option to play at different difficulty levels...