I've heard it's good and all, but honestly, this shared universe and Avengers stuff really gets on my nerves.
It's always felt like pure fanservice to me; OMG, ALL YOUR FAVORITE CHARACTERS MEET UP!111
Even as a kid, I rolled my eyes at such notions. It's okay to be separate franchises from the same company; it's like that concept is taboo these days.
Marvel is just okay, I liked the Guardians films if only because they were so standalone compared to the other ones.
And even though they're a big part of this movie, I still don't really care to see it at all.