Actually playing Guardians of the Galaxy on pc. I'm only at chapter 3 but I can already say its one of the best game I played so far . My opinion is probably biaised since I'm a Marvel fan and GOTG are my favorites !
So far what i like : gameplay is nice, you dont control all the characters but you can rely on them in fight and in some situations.. Their basics moves can be upgraded. Most of the time you can choose between 2 options when a dialogue appear and it really influence the way you will continue the game (you can really have some advantage in game). In some tricky situation you can have a meeting with your teammates and it can influence the outcoming on a battle, The soundtrack is awesome !! The dialogues are just right and change according to what your main character do (no surprise here we are Peter Quill). As an example in chap 3 I had the choice between throw Rocket over a big cliff (Draxx choice) or just stay with Rocket and find another way to unlock the path. Obviously I choose Rocket side and got a message that Rocket now trust me more.
Problems I encounter : freezing sometimes or low fps mainly on cinermatics but never in gameplay. I had to restart maybe 2 times since game totally froze on certain cinematics but the game save so much often its not really a problem only had to restart and it dont take time.
Overall its a 9 out of 10. Story is nice and it keep the characters behaviors, some moments are really funny and the game stick to the main GOTG feeling