Thank God I rented it first.
Unfortunately multiplayer is horrible beyond belief. It is VERY possible for the second player to be off the screen, or for the computer AI to slow down both players by refusing to hop on an elevator.
Thankfully the graphics are great. Like the level my wife is currently playing (single-player), it really DOES look like she's fighting in the dark with limited visibility. If you're not using the Human Torch on this level, you don't stand a hope in hell of knowing where you (or the enemies) are. Again... multiplayer is a real peach with features like this (there's only one Human Torch).
Yep, this ranks right up there with "Spider-Man 3" as the biggest videogame letdown I've had this year.