I personally found it difficult to navigate, but I'm not use to play any audio games, I get confuse when there is a lot of repetitive sounds, so I can't really give any feedback on the gameplay.
I was surprise at the fact that there is lost of options to make accessibility and navigation more flexible. I'm sure with more time and experimenting with all the options I will be able to have a better navigation experience.
The fact that you can control the volume of each different sound is also really cool, I haven't seen that in any other game so far.