The beginning mall scene was really the only bad part of this entire film. I think it's by design though. I got the impression they were trying to mirror cringey 1970's superhero shows and nailed it. The style just didn't age well.
Aside from that, engaging villains, new dynamics and character arcs from Diana, interesting story, satisfying conclusion, and had a decent pace throughout.
I'll say the first film was the better of the two, but this really isn't far off. More fun, less serious, better ending.