Finally saw it, I liked it quite a lot overall!
Some minor complaints.... of course the movie had to exist, and with the characters making good choices there wouldn't be a movie, but the entire movie happens just because of a couple of bad decisions. If Peter hadn't screw up the spell at the beginning, everyone would have just forgotten he was Spiderman, boom, movie over. But he screws up, he wants to give a second chance to the bad guys, Dr. Strange manages to talk him into not going through with it, boom, movie over.
I mean, this could be said of every movie, every film has something that pushes the plot forward, but this was just a blatant case of Peter screwing up things not once but twice in order for the movie to happen. At least it's not out of character, as Dr. Strange said: "Sometimes I don't remember you're just a kid".
I also thought the arrival of the two other Peters would have been more dramatic, but well, not really complaining, it could have been predictable and cheesy to have Tom Holland in dire straits and then out of nowhere comes a spider web and tadaaah, triumphant music, it's Andrew Garfield! it's ok that way.