Quite an evocative experience. I liked how it was able to put me in a different state of mind reading it: the whole "run left/right" soon became disjointed from the actual actions I was doing and more about the mood I was looking for.
It was not very clear though what kind of overall story it wanted to tell. There seemed to be glimpses of a lot of interesting topics, but I guess the high number of optional parts of the story can make it difficult to catch them all.