It was definitely love/hate playing GOTG, it frustrated me to no end. The gameplay was so bad in places I couldn't complete various sections without referencing player guides.
But I was compelled to complete it because of how well the story was told. I did enjoyed it, but I'm never going to replay it again, which is a shame.
I don't remember having any issues with gameplay in GotG. The battles got slightly repetitive, but I didn't have much trouble beating it in hard mode (and loved it). Weren't that many battles I had to try more than once or twice.
I agree the gameplay turned meh pretty fast for me; it devolved to just cycling through all the teammates' powers as they came up, while holding a direction to circle strafe most of everything with the occasional dodge.
and I'm not a fan of using a specific weapon for a specific enemy just because it was hardcoded to work (e.g. the western DmC: Devil May Cry before the rework). I much prefer weapons being suited for specific enemies because their functionality counters specific behaviors, such as their movement patterns
I loved it and immediately went for plat after I finished the first time. The combat was a little rough at times but not really all that challenging. Way better than the movies by far. The characters, story, and acting were all phenomenal