This movie was wonderfully refreshing. Really, really unique. Every moment was perfect, except a couple of the silly impractical things some have already pointed out, but that's not important. It felt much more like a heist movie than I expected, which I thoroughly enjoyed because who doesn't love a great heist flick? The character development and motivations actually made sense, and I felt that Cross was one of the better Marvel villains due to his somewhat understandable reasoning for doing what he did. It's hilarious, full of heart, makes sense, the cast is fantastic (especially Rudd), the CGI is unbelievable (young Michael Douglas was amazing!), has many really nice connections to the MCU, and is overall one of the best origin films, possibly even better than Iron Man. Also, I think Hank Pym may have taken Stark's spot as my new favorite genius with a super cool lab/workshop.
Some of the most memorable moments for me were the awesome 1989 opening scene, the Cold War rocket Ant-Man/Wasp scene, the Falcon/Ant-Man fight, all the science and tech explanation stuff, and yeah the whole movie. I absolutely love it.
After credit scenes were great as well. The Wasp one was not very surprising, but it was nice to see her suit and I can't wait to see her in it and kicking ass. As for the Civil War one, that one surprised me! It definitely left you hanging and wondering why Cap and Sam can't work with any of the other Avengers other than Tony. Happy to know that Scott will be fighting alongside Cap next year.
It easily takes a spot in my top favorite MCU films. I'm thrilled it was as good I had hoped it to be and I am itching to see it again!