As a real Harry Potter books fan for me every "Harry Potter" film is kind of a disappointment. As of course it is near impossible to capture all the details of a 700 paged book into a 2 hour film (which bring us back to the books vs. film discussion which I don't want to go into detail now).
But surprisingly in my opinion this film had many good solutions on how to make a good book based ("Harry Potter") film.
These spoken of solutions are firstly I think mainly due to the good directing and good (but not phenomenal) music which is integrated into the film perfectly.