Movie was nice overall.
My two issues were:
1. The fact that the post credit scene was WAY too important to not have been shown in the movie itself.
2. Obviously everyone that read comics or watched spider-man as a kid knows Mysterio is a classic spider-man villain. But given that he's being presented for the first time in movies, anyone that has not read the comics and sees this movie would find it really weird that he just suddenly ends up being the villain. There was no indicator until the reveal. In fact they even managed to make him seem genuinely good. Then BOOM! Reveal. Followed by a whole scene of just explaining why he's the villain. It was a bit weird.
The pacing of the movie was nice tho and it ended up being a fun movie to watch. Kinda feels like they downplayed the impact of the "blip" for the sake of keeping the movie upbeat/comedic.