Great Fun and Great Workout!
I recently got the Zumba Fitness on PS3 for my birthday and cant stop playing it! I do agree with some of the reviews with regards to the menu, I even took to reading the little booklet that came with it but it has no further explanation, but I am not too fussed about getting the moves exactly right, the whole point is to have a bit of fun and burn off some calories.
I have done a few Zumba classes in the past which definitely helped but unless you treat it like a dance competition, this is a great workout that is lots of fun! There is the possibility to set your profile to easy at the start and then up the difficulty when you have mastered a few moves, which means the workouts can always be made a bit more challenging.