I enjoyed this movie. The fx are good, the characters work, the creatures are likeable and the old Potter-feeling is still there.

I have one major concern though. This movie onky works as part of a larger story because it sets up parts 3-5. As a standalone experience it's not very good. It's fine to embed the story into a larger context but it also should work on its own as an entertaining experience.

This one feels more like two or three episodes of a tv series. But thus is made for the big screen! We now have to wait another two years to see how the story moves on. For a tv series this is fine. Worst case, we have to wait til the next season comes out.

So, filmmakers really should treat the material like a movie and not pretend it's part of a series. When you go to the cinema, you can expect to have a satisfying ending that gives closure to the story. This is possible even if you tell a larger story. The Potter films and the Lord of the rings are good examples.

Rowling is capable of writing such stories which is why I'm optimistic about how thus franchise is going to evolve.