Todd Malkin’s review published on Letterboxd:
It's like a very sophisticated, overly-complicated, two-and-a-half hour episode of Three's Company. Except, you won't laugh once, you won't understand half of it, and it sucks when everyone comes clean at the end.
Didn't like a single character this time around. Since I just rewatched the first Fantastic Beasts, it was pretty obvious that Rowling cheated with her own "rules." For instance, it sure was easy to catch that Niffler... and it sure was easy for it to escape from Newt's case...
To my wife (who knows her Harry Potter): "Am I missing something because this movie isn't describing it, or is it just because I don't know Harry Potter?"
Much, much worse than expected.