I platinumed the game earlier this year. I definitely enjoyed it overall, and I've been a fan of the team that makes up Giant Squid since they were on Journey. But I have a few nitpicks/criticisms that kept me from enjoying it as much as I thought I would.
1. I don't know how much of this is influenced by me being a fan of their past games. But this game did not need any dialogue or "data logs", and if it really wanted to go that route, then they needed to be better written. The emotional highs and lows came from the great visuals, cinematic angles, and musical score. But they tried to use the narrative and dialogue to draw emotion and it really wasn't working. It was cheesy, flat, and predictable. "The truth is a Pathless land!" was supposed to be this triumphant declaration, but it really just made me roll my eyes. It's supposed to tie into the gameplay about how you can go anywhere and tackle any puzzle before you get to the boss, but really for me it just felt like a way to justify the title being THE PATHLESS. Like they couldn't get across their message without putting in a story.
2. Like a few people have said...the boss fights sucked. They wouldn't have been so bad if you didnt keep getting knocked out of the arena whenever you messed up, or if it was easier to replenish your speed meter after falling over. The only boss fight I enjoyed was the last one, it definitely felt sufficiently climactic with lots of spectacle and tied in past fighting mechanics really well. (But it didn't need the story to feel epic, it was epic in and of itself, so I enjoyed it despite the story. Does that make sense?)
Overall, fun game, loved the traversal, LOVED THE EAGLE, loved the colors and music.