From what I've read about it, this game is essentially a third-party Wii Play set at a Carnival. You can't really go wrong there, because Wii Play is a fairly good game.
My main gripe with Carnival Games is the price. For what it is, $39.99 seems too much. If it were $19.99 that would be great. Wii Play wasn't worth $49.99, but at least with that you got a bonus controller. If Carnival Games had some bonus accessory with it that would probably justify its price, but as it is I think it is too much.