It's pretty fun! The powers (or abilities, in Batman's case) are cool, and even though I thought it'd be weird to hear the legos talk, it's actually fine. But I don't like how the levels are harder, and I wish they kept builder (you could build your own level there). Overall good game.
Violence: Lots of fighting (kicking, punching, guns) but they characters are legos and just break when they die.
Sex: Some of the female outfits (like Wonder Woman's) could be considered inappropriate, but Legos can't look too suggestive.
Language: "Idiot" and the like.