I'm really enjoying the game so far! I've played like 4 hours and so far it's pretty fun! I'm starting to unlock the second ability for all characters and now I'm starting to see a lot of uniqueness between them. I'm also noticing really cool stuff like Star-Lord being able to set his own tornados on fire and Crystal switching elements depening on which power you used last.
The combat system is really interesting, too. You have to be very careful with strong enemies and manage your powers correctly to stagger them or they will crush you.
Also, if anyone's interested, I'm playing by switching characters constantly and, so far, I've been able to keep all of them somewhat balanced. I'm sure this will change at some point and I'll have to do some Infinity Trials to balance them out, but so far so good!
Cool game so far! I'll play some more tomorrow!