I love the design of the UI itself and the atmosphere created was quite enthralling. My only gripe is that at the point were we had to keep repeating to ourself. It went on longer than I would have personally liked. Unfortunately that's where I stopped.
Maybe I needed something else to keep me hooked til then end but again with game jams, it's all about experimenting. So I'd say my highlight was the basic info sign up section and the audio. Very nice headphone experience.