Went and watched Guardians of the Galaxy Vol. 2 today. Fantastic sequel and for my money by far the funniest Marvel movie. Most of it stems from funny character interactions and the odd pop-culture reference thrown in in a very funny way but there are also a lot of sight-gags and other nice things. The villain was also fine. I kind of knew what was up due to my pre-existing familiarity when he revealed his name, but I didn't quite expect a reveal later on. The plot and its importance in the MCU wasn't all that earthshattering, but it was still good and upped a lot of personal stakes and tied very well into the theme of the film itself. Overall this movie is a blast.
Only things I thought were bad was a small exposition dump early on which felt really out of place and the fact that Drax talks about his family and we have never actually seen them and it makes Drax kind of unrelate-able. I mean it is "understandable" the way he feels based on the character he is but it fails to connect on an emotional level.
Also I didn't really catch the name of Sylvester Stallone's character so I thought that he and the people revealed at the very end of the movie might be the Starjammers, but actually he is Starhawk and Ving Rhames is Charlie-27. They are basically the "OG" Guardians of the Galaxy from the Earth-691 timeline incorporated into the MCU the same way that Yondu is.
Finally, there are a total of five post-credits scenes to the movie so stay for them when you go watch. I usually stay for them as well but my group really wanted to leave because some had a thing come up soon and I only found out what they were at home.