My issues with it:
It is incomplete, full of bugs and has a lot of cut content that would have made it better. Then again, a lot of LEGO games are like this.
It isn't in the spirit of the original LEGO Island. It doesn't have the craziness of the original game, the animations and voices are dull and lifeless sometimes.
The story is stupid and could be resolved easily if any of the citizens actually did something. In the first game, Pepper was just helping the police. Here, he does all the work and Nick just eats donuts. I mean, there's a super hero living here, why does he just toot around and kidnap children crossing the railroad?
Really, I don't hate it as much as I act like, but this is mostly because it's LEGO. There are good things about it, and I used to like it more than I do now. Plus, I've found worse games.