Sadly, it didn't age well at all. I bought the remastered version couple of years ago and it is simply not fun to play. Which is a shame since this was a personal favorite of my, growing up.
Good thing MUA3 exists. It has a fantastic roster and does button mashing brainless Marvel gamr thing so good.
Unfortunately, I found that most of the heroes powers and synergies have been a lot more homogenised. It feels a lot more repetitive than the earlier UA/Xmen legends games.
I still remember being blown away by the plethora of characters and the crazy level art. The powers were so much fun to use, for some reason I had a preference for Deadpool despite not knowing anything about the character.