I notice that this movie had an invisible plane, and the Wonder Woman film did not.

I liked that the film took a page out of Amazing Spider-Man #267.

I'm fine with it for several reasons.

1) It fits in well with the MCU as established, which is its own thing, different from world we know. In the world we know, Spider-Man became Spider-Man before Iron Man. In this world, Iron Man had been around for years.
2) It makes sense out of Spider-Man having such a fancy costume. Those lenses? How does it grip his neck that tightly and seamlessly? It was always a wink and nod in the original comics, and this allowed for a really nice suit.
3) I thought it was well-handled. Iron Man wasn't in too much of the movie. Just enough, I thought. His role seemed a good one for a young hero with lessons to learn, perhaps wanting to push too far, too fast.
4) Ultimate Spider-Man did similar things, with Nick Fury and established heroes looking out for him.
5) He still invented his own webshooters
6) They made a point of taking away the Stark tech to give him a shot at doing things for himself. So the film didn't rely on the gadgetry.

On the other hand, the idea of a "Q" character is a bit of a movie cliche that comics have generally relied much less heavily on than superhero movies and TV shows have. So the "fairy godfather" description is apt.

I dislike the emphasis on the suit for the same reasons you did. Spider-Man has a cool, diverse set of abilities, so it diminishes them somewhat by putting so much focus on the costume. But I didn't mind it as much as thought I would based on the trailers. It served storytelling purposes, so there are pros to go with the cons.

But speaking of Spidey's powers, his spider sense was noticeably absent. In fact, it had to be absent for several plot points to work. For instance, I can't see Peter overlooking Ned in his room if he had spider sense.

I liked the movie a lot. It was clever, funny, action-packed, well-constructed, heart-felt, etc. They messed with the canon a bit, but I think the changes worked well. I don't mind them so much, since we've had opportunities to see more traditional portrayals of Aunt May, MJ, etc. on screen already.

I think Sony/Marvel may have created a fake spoiler to take movie-goers by surprise. I heard that Michelle's last name was revealed in some materials to be Toomes. I never saw it coming when the Vulture turned out to be Liz's father, because I thought he was going to be Michelle's dad. Michael Keaton was great. I think his portrayal and the fact that Peter rescued him were helpful in explaining why he wouldn't reveal Spider-Man's identity.

Civil War hinted that Tony and Pepper were on the outs. I felt bad about that, so I was glad to see Gwyneth Paltrow back as Pepper.

One glaring inconsistency was the portrayal of Spider-Man's skills in Civil War compared to Homecoming. Spidey had skills to hold his own against various Avengers in Civil War. But I guess the storyline of Homecoming required Spidey to be less adept at this point.

Hadn't thought about that, but I think you're right. He did seem much more capable of handling Falcon than he did Vulture.

Spider-Man also fought many others in the course of the Civil War battle (Winter Soldier, Cap, Giant-Man) and seemed pretty skilled throughout. In Homecoming, Spidey had difficulty with the thugs robbing the ATM. After he knew they had high tech weapons, he still got caught two or three more times.

Which is also suggestive of a lack of spider sense.