Got this the other day. It's not quite as fun as Lego Star Wars, but it's a bit of fun. The levels are a bit too long for my liking, to be honest, sometimes taking me about half an hour to finish a level. I'd prefer more levels, but at about 5-10 minutes worth of work a piece.
It's good, clean fun though. It's good for kids as the violence is minimal (and it's lego characters, so who cares?) and it's fairly forgiving in that it doesn't really kill you at any point (which is great for me, who sucks badly at some video games).
The game also had a trailer for the new Lego Batman coming up. That one looks like it's going to be absolutely brilliant. Can't wait!