Personally I found this movie to be 2+ hours of excellent entertainment. This is one of these movies where I simply cannot understand how people can give one and two star ratings stating that it is garbage etc. I do not get what these people expected? Maybe they just have to complain? The original Harry Potter books are very much books for children or young adults and so is this movie. It is a highly entertaining story in a magical universe with some adventure, some suspense and a lot of humor.
The magic and the magical animals are quite cool. The pocket universe (or whatever they are called in the Harry Potter world) is simply gorgeous and cool. The story is not really much to write home about but it does not have to be. This is a magical movie where the magical atmosphere is what makes the movie. It is a good enough story involving a bit of suspense, action, friendship, bad guys, quite some humor and, of course, a lot of magic. More importantly perhaps, the story is not overly stupid nor does is try to peddle crappy SJW nonsense messages about gender or diversity nor climate. This movie delivers where it counts as far as I am concerned. It is entertaining, plain and simple.
If I should endeavor try to find something to complain about it would probably be that the lead character was fairly bland. He did not really have much charisma. That and the fact that I never really understood which, despicable (presumably) acts the main opponent, Grindelwald, had actually committed before the events of the movie.
On the whole I enjoyed the movie a lot and although it is perhaps not the absolutely best movie I have ever seen but it still deserves a top rating.