I'm still processing this in my mind, saw it last night, the cinema was packed and there was the stunned silence at the end. Bloody brilliant story telling, action and comedy moments. Favourite comedy moments that I can recall are: Spiderman realising what he's got involved in, introducing himself as Peter then realising nobody is using their real name, introducing the Aliens film to the old timers. Hulk refusing to come out was both funny and omg you get out here now! 
I love teenage Groot, I felt like a proud mom when he stepped up and made the handle for Thor's new axe, and he was fighting in the battle at Wakanda. I was/am genuinely devastated that he was turned into ash.
I'm so happy this is the space I'm using to demonstrate how overly invested I am in this film.
I'm annoyed that Gwyneth Paltrow still appears in these films, and her calling ironman whining about getting off the ship was sooooooo annoying. I know I know she's just playing a character, I just don't think she's a very good actress.
The message I took away from this film was be mindful of what choices you make/how you treat people in the pursuit of your goals.
I agree that after Thanos has sat in the sun for a bit, he'll regret it and will use the stone to turn back time
Brilliant film - I'm going to see it again very soon.