I enjoyed 7.2 but the issues I had...
Were all with the finale.
Snape's story. On it's own everything was done well, but how in the world did they forget to include the short scene with Snape Calling Lilly a mudblood. The reason for her abandoning Snape was never answered.
King's Cross. Again, it was gone well enough, but I loved how the book had Harry being a bit of a smartass to Dumbledore (and rightfully so). In the film it's still the usual reverence for Dumbledore. Harry still respected him in the books, but he wasn't going to let him off without getting some answeres
Final battle. In trying to make it more "epic" it just came off as goofy. The final duel with Harry and Voldemort may have been simpler in the book, but it worked very well. I didn't like that the film left out all the dialogue between the two.
Elder Wand. I actually liked the change of having Harry snap the thing in two, but it seemed silly not to include 15 more seconds of film to have him repair his old wand.
Oh, I definitely agree with you on all this points when watching the movie as someone who had read all the books before watching it. But as a movie and only a movie, it was great. One of the best photographies of them all, the best acting for the main trio, epic moments everywhere. It was awesome if you watched it with this mentality. I knew it would never meet my book reader expectations anyway...