That is really thoughtful feedback - I really appreciate it and I am so happy you liked the puzzles and the music. The music was a very last minute creation by justaguy on discord who basically threw himself into the project on the Thursday! I think it's brilliant and adds to the atmosphere so good to hear you like it too!
I also love that you touched everything at the beginning, it was my intention for the player to learn by "mistake" so I'm happy that you did so and didn't find dying too painful! The checkpoints were there to reduce the pain of dying as well.
Totally get what you say about the dialogue, I added most of it at the last minute and you're right, it was clunky in places :)