I did a lot of research before deciding on this version of Just Dance. It has the sweat mode, multi-player and an okay assortment of songs. This was the first Just Dance game we bought, so it was perfect for us. I did read that most of the songs are songs from other Just Dance games, so if you've got the other ones, this probably isn't for you. I'm giving it four stars, because I think there could've been a better selection of songs. We really like a few of them, but most of them are dumb songs that you'd expect to hear blaring from a teenager's car. That being said, there still are a handful that we like. One thing I like about this is that the dancers are not as scandalous as some other games. They're not real people and they are kind of silhouette-looking, not like the skanky cartoon girls you see on the Rock Band games. I REALLY wish they'd come out with a game that had Oldies on it. It'd be super fun to dance with the kids to Beach Boys! For now, we just skip the Beyonce & Rhianna songs.
So all of my kids have flown the nest so I find it hard to justify spending too much hard earned moolah on games...BUT with greatest hits, you truly do get the best of both games, including viva las vegas, who let the dogs out, and so on! Great if you would rather save having to buy multiple just dance games and get a little variety in your gameplaying instead. Seller and shipping were great as well, arrived in record time in great condition.
So far no complaints here - it's a relatively good compilation of Just Dance 1 and 2... only missing one song that I might otherwise like to have on their from the previous games. It all comes down to what songs you want to groove to, I guess! =)