*some spoilers, but seriously I’m like the last person to see this*
I really loved Spider-Man: Homecoming, though I can see why there were a few people who didn’t. It’s not what you expect from the Marvel Cinematic Universe, not exactly. Sure, it’s a superhero story, there’s Iron Man flying around, supervillains with crazy weapons, the usual. But it is counter-balanced by teen drama (and comedy) which is a bit of a shift compared to the rest of the MCU. I thought it was a solid balance, and very entertaining, even if it won’t supplant my top MCU movies (which are, in no particular order, Iron Man, Guardians of the Galaxy, The Winter Soldier, and Civil War).
The other thing which bothers a certain subset of fans is changes from the source. Whether it’s Ned basically being Ganke, or hot Aunt May, or “MJ”, they’ll find something to complain about. I’ve said it before, an adaptation HAS TO change things to be interesting. Sure, there’s a balancing act where if you go too far, you don’t recognize how one connects to the other but we’re nowhere near that line here. Peter still got bit by a radioactive spider, he lost Uncle Ben, he’s got the ol’ Parker luck. The words may not have been said directly in this or Civil War but Peter is absolutely living by “With Great Power comes Great Responsibility”. Tony Stark was quite different from RDJr, but it worked out for everyone. Peter Quill didn’t stand out at all until they ported in James Gunn’s version to the comics.
Okay, to the rest of the movie. I loved Michael Keaton as Toomes/The Vulture. I found myself both feeling sorry for him (seriously, Tony Stark fucks up EVERYTHING), and recoiling from a legitimately scary villain. The scene when Peter goes to pick Liz up for the prom, and the car ride was tense. I can hear Zendaya’s MJ calling Parker ‘Tiger’, easily. I love Marisa Tomei, and you can’t help but laugh at the mom jeans and ugly glasses they try to use to make her seem old and unattractive. Laura Harrier, Jacob Batalon, and the other “kids” did a solid job as well.
Spider-Man: Homecoming is great if you like your MCU mixed up with a coming-of-age tale. There’s superheroics, teen angst, marriage proposals, and goofy public service announcements. And Peter, maybe learn to lock your door.
works and 
doesn’t, and that’s emotional investment. I know Zack Snyder and DC/WB wanted to do thing their own way and not ape Marvel’s so far successful approach, but when you are rebooting two legendary characters and making significant changes, you need to get the fans used to these new versions. We KNOW Tony Stark and Steve Rogers. We’ve seen them overcome numerous obstacles, both separately and together. They’ve fallen on hard times, been betrayed, beaten, come back stronger. Mistakes were made, characters have evolved, things have changed. It’s why we can believe Captain America, the guy who wears flag colors and beat the snot out of Nazis and HYDRA for his country, would now decide “the safest hands are still our own”. Why we can believe Tony Stark, the rebel genius whose not a team player, admonished for his ‘ready-fire-aim’ mentality, would toe the line this time after never even looking for the line before. Cap, since being unfrozen, was lied to by Fury, found out SHIELD was infiltrated by his greatest enemy, and then had to bail Tony’s ass out after one of his creations came within a hair’s breadth of destroying the Earth. Tony for his part, finally has to come to grips with the fact that his first impulse may not always be his best. And this time, it wasn’t just his own life getting torn to shreds, but the entire planet.