Okay I finally saw Guardians of Galaxy today (unfortunately in just 2D) and it was really great!

I really loved the humour and how the movie didn't really take itself so seriously so it was also very relaxing to watch. The action scenes weren't as good as in Avengers imo but they weren't bad. There were few moments that I cringed a bit like the dancing and singing to distract that evil dude with Infinity Stone but it didn't ruin it for me.

Also, Rachet and Groot = love.