Avoided the opening weekend rush only to go see it on Mother's Day. (Because I'm that busy ;)).
Both the people who said it was worse than the original and the people who said it was better? Wrong.
I'd put it at about the same level. No danceoffs, but Pac-Man made up for it. (I will say no more). Mantis was adorable, although not nearly as adorable as Baby Groot.
(I am Groot).
And I actually think the animation on Rocket was even better than in the first movie. Probably practice.
As usual with this kind of movie, don't expect any real science. But quite a few laughs and plenty of explosions. Mostly of things the team were standing on at the time.