Well I'm a potterhead, and i really liked this movie, it was wonderful.
I see no such plots where this movie should be critisized as bad as it already got. However i didn't like only thing which is Jacob and Newt spending a lot of time to go after their romantic interest. Dude! MUGGLES ARE IN THREAT OUT THERE!
This movie engaged us to many characters and their backstory and I'm absolutely sure after being too mich familiar to JK Rowling's wizarding world that plots and stories in this movie will be definitely going to effect next 3, and this plots were really essential for the upcoming movies, we had to see the back story of all those characters to understand where it is going to lead in future. And believe me i was on the edge of my seat, unlike critics i didn't feel bore, it made sense, i consider it was one of the best movie of the year.
I see a lot more coming in next 3 movies and I'm excited for that. And i adored this movie more than the first one, this one actually took us back in the time and i really felt very much that I'm watching a Harry potter universe movie.