I think this would have been a good opportunity for Universal to change the villain lineup to have each villain have a 4D effect (I'm looking at you Scream). Like maybe Mysterio and have him trick Spider-Man with illusions and fill the room with mist. Something ANYTHING beyond "Oh the humanity, she's swiping her claws at me!"
So in summary: Animation great, music abysmal.
I rode yesterday and the wait was about 90 minutes, 40 mins for single riders. The new animation is beautiful, but the ending sequence did not seem to have the same intensity as before. The tilt of the ride vehicle seemed far less extream, so Maybe they are breaking the movement in slowly?
As a result, you're able to take in the images onscreen longer (including a few new details and minor scene extensions), but the physical ride itself seems much less 'wild', and, as a result, a bit less fun than it used to be.
It's kind of like adding trim brakes to The Beast. Sure it's still great, but not as great as you once experienced. And yes, the new soundtrack will take some getting used to.