To describe Justice league in one word, I'll say it's fun. Everyone came to play in this movie and I loved it. As far as the critics go, what the hell are you talking about? The CGI was fine. I'd say 90% of it was really good. The other 10% felt like PS3 cutscenes.
The team was on point. All of the members of the justice League came to play. And while talking about Superman may be a spoiler. All I'll say is that he's great.
So a weak villain and some ol CGI round out a perfectly fine and fun popcorn movie.