Looks like it could be fun. I'm hoping almost all the achievements can be unlocked in local co-op, so my wife and I can boost those.
At least the characters have those snazzy uniforms, but it doesn't seem like they're customizable other than choosing the uniform and gaining the subsequent powers that is unique to each. Based on the achievements, it seems like you choose one character with several uniform changes, which is like the opposite of Marvel v Capcom or similar fighting games, where you can choose a team of 3 characters and swap them out during the fight. I didn't take the time to watch the trailer, though, so I could be way off.