Finally saw this last night, and though I was fully ready to hate on it, the movie was such fun.
Rocket and Thor were probably my favorite parts of this - their banter was genuinely funny. I was over Tony Stark a while ago, so I had no problem with him being killed off. I mean, he got a great sendoff, so that's something.
The movie also had a lot of heart, which I didn't expect. The Peter/Tony scenes were especially poignant.
While parts of this dragged for me, I loved the last hour or so. Similar to what others have mentioned here, there were whoops and cheers in my theater. It's not perfect by any means (Why was Capt. Marvel gone for most of the action? I kept asking my sister "Where is Carol!"), but this film is the very definition of the term crowd pleaser.
The end credits were excellent. I was genuinely moved.