The fact that it's free makes this game (or whatever it is) playable because it's not worth paying for.
You start off in "your house" and go through the tutorial. After you learnt how to dance, sit down and use your "pod" it's off to meet other players in the square. There's not much to do in the square other than to play with miniature helicopters, crowd the place and watch advertisement screens.
If you manage to play long enough to make it past the tutorial and into the square without leaving, well done! You can now enjoy slow passed games and aimless walking in other rooms.
In summary, play this if you got nothing better to do with your time!