1- Marvel has a rather incredible knack for taking things that should be ridiculous and making them super fucking cool. I mean seriously, anything called "Ant-Man" should be totally stupid right? Wrong!
2- As always, Paul Rudd was fantastic. Also, he obviously put a good bit of effort into getting into superhero-worthy shape.
3- Scott Lang is a really cool and interesting character.
4- Scott's daughter is fucking adorable. For example, at one point he gives her the creepiest looking toy rabbit I have ever seen. To which she replies "He's so ugly! I love him!"
5- We get another badass female character, Hope.
6- I really liked the ants and the fact that they were, at least to some extent, given distinct personalities. I thought this was great, since a lot of people never think twice about killing ants. According to Evangeline Lilly "You could take all of us out of the movie, and it would still be really kick ass if you had the ants. They’re really the best part of the movie."
7- The big fight scene at the end was both intense and totally hilarious. Giant Thomas the tank engine flying through the air anyone?
8- Falcon has a (somewhat small, but still) part, which made me happy because I loved him in the Winter Soldier.
9- Scott has a circle professional criminal friends, who I found quite endearing. ( I don't know, I have a thing for likable criminals).
10- The post credit scene was weird and confusing (in a good way) and left you with an overwhelming need to see Civil War!
Pretty much my response to the post-credit scene^