My controller started to give up on me towards the end of playing an hour, so I'm not sure if I found everything or not in the prologue.
I enjoyed the story, and the intro was good. I don't know if eventually you unlock an air dash - but that'd be a cool upgrade. I didn't actually get to use the upgrade because I think I only had one of the required shards once and died before making it back to a save spot.
Really, really beautiful art and great soundtrack. I liked the writing, and the way characters talked to each other. I saw a few minor grammar issues here and there, but nothing major.
Combat was a standout, and was a lot of fun. It definitely became even better once I unlocked the dash. I had a good time with it.