Early on in the movie I was really kinda getting annoyed that somehow Sam Jackson was managing to over-act Nick Fury (...I know, right!?) and/or was just kinda phoning it in. That ended up being explained away by the end credits scene. I did notice when he said 'Mysterio is from your Earth' rather than 'our Earth', but missed that Hill in the opening scene called him Nick, not Fury. That mid-credits scene, fuck, they went there. I doubt Mephisto will be showing up to undo the forthcoming mess.
The Mysterio stuff was fantastic, among the best sequences I've ever seen in comic movies and I feel really did spirit of the character justice. Didn't find the kids stuff very annoying, though Zendaya's awkwardness came across a bit rough to me in a few scenes. Pretty happy with Peter and MJ finally becoming Peter and MJ.