Just saw it, my review (spoilers)
Firstly it was strange because it was an introduction to a new Spiderman without an introduction story. We don't see how he became spiderman and he lives only with his Aunt, so is Uncle Ben already deceased? So it feels like we're jumping into a part II of a new storyline. But I quickly let go of this because I know the origin of his story. (A reference to his origin story may have been facilitated with some sort of flashback or montage).
So he's gifted a suit and dropped off in his old life, and quickly ignored by Stark Industries. This created the 'I must prove myself' storyline. Sort of a teenage rebellion storyline, pushing the boundaries.
I think this aspect could have been more strongly achieved. Maybe Tony telling him not to do anything at all except finish highschool (the usual parental speech.)
The next part of the story was a disappointment. The villain storyline is a rehash of Whiplash from Iron Man 2. A nobody who seizes someone else's technology and becomes a bad guy. If I was writing this I'd just have it as a guy who is in a rival technology company instead of an obvious borrowed storyline.
I think Michael Keaton did a good job, particularly scenes like his drive to the school.
The best friend wasn't too bad, nor as annoying as I expected him to be from the trailers. His excuse for being in the computer room was hilarious.
The love interest and MJ character were a little too vague for me. I wasn't sure why his love interest liked him (no real reason given) and the outcast MJ seemed to be annoying for annoying sake.
I did like the twist that Michael Keaton was the father and I never saw it coming, so it was good.
I did notice that there were barely any white people in his school but perhaps that's just realistic for new york these days. There was even a muslim girl, orthodox jew and a gay kid having a chat with the girls.
I liked the technology with the suit but it ventured into Iron Man technology too much, especially with the Jarvis A.I. Also there were two rip offs of back to the future, the self-adjusting suit and built in dryer. I wish they had given a nod to it with Tony saying "back to the future II gave me that idea" because I don't think anyone wouldn't have noticed the cultural reference.
The eyes were cool.
The casting of Peter Parker was good. He sold being a teenager despite being around 20 while this was shot. I wish with his character we could have seen more levels other than the continuous "awkward" emotion that was overplayed. Him getting his big date was a moment I wish they let go of that for a second and just had a good moment. I would have even rewritten the car scene with perhaps him showing some bravery like saying something like "this is a dangerous situation" to which Vulture replies "well of course it is, you're just a--" "for you" Peter replies. "This is dangerous... for you." That way they'd both know it's game on the second he gets out of the car.
The finale scene (saving a cargo plane) was a little disappointing. I wanted something bigger. Why not have Spider Man save Iron Man?
I'll give it 4 stars. It was enjoyable and an improvement over the Amazing Spiderman.