I liked the first one just fine. But this one could not hold my interest.
Disclaimer: maybe the parts I dozed through were great.
But for the parts I saw: Newt Scaramander has lost most of the charming quirkiness he had in the first movie. Jacob Kowalski not as goofily clueless. Johnny Depp is "Grindelwald", and he's seemingly somnambulistic. Everything's dark. (I guess it's cheaper to do CGI in the dark.)
So, no movies 3, 4, or 5 for me, Ms. Rowling. Unless Mrs. Salad insists.