Put the disc into your console, start the game.
You're welcomed by the standard Singstar interface, barely changed since the first PS3 edition came out, but still, there are some minor alterations. It is rather good overall, the interface, so it's not a big issue. If any issue at all.
The tracklist of this edition... well... I am rather satisfied. I understand that you can't dance to everything and from the songs one can dance to the Sony team chose a few good ones - Lady Gaga's 'Poker Face', the Jackson 5, 'I like to move it' (the orginal version, not the Madagascar one), Livin' la Vida Loca, Hey ya by Outkast and some others. There are (less than 10 out of 30) tracks that I cannot digest at all. I don't know whether it's true for everybody, probably not.
The whole dancing thing... It's not better than Dance Central for Kinect, I suppose, but still, it's one of the best ways you can use your move controller at the moment. When you dance correctly tracking works well, most of the time at least. It's the other way around that is sometimes problematic, by which I mean that one can cheat the game if you put some effort into it (I don't think leg movement is tracked at all). On the other hand, what's the point?
The game offers a very good reason to move, sweat, exercise and that's what's most important for me. If you gain some satisfaction and fun out of 'dancing' in front of a TV, a single song can be easily played fifty times. Mastery takes time, doesn't it?
Routines are quite advanced and cannot be repeated nor mastered in the first approach but that's what powers the game's replayability. The sole process of learning can make a lot of fun.
I've started to run in circles, so let's just stop here to sum up.
Fun and exercise. And some more fun.
And remember... you don't have to dance, you can also sing (either alone or with a partner (either a singer or a dancer))
So I recommend it. Especially for this price.