The story is captivating - as the other reviewer put it, fairly standard - science fiction/horror with apparent influence from titles in the genre like Alien, Event Horizon, and Sunshine.
As IF, it doesn't offer the breadth and depth of choice many readers might be searching for. As fiction and for sheer enjoyment factor, I give it 5 stars. It has some limited replay value, as certain choices you make influence the ending, although not enough to change it entirely.
There's some interesting fourth wall interplay only possible through IF, such as in one scene, where the user's input doesn't match the actions that happen next. A really interesting narrative choice that immerses the reader/play in the story and gives you the same sense of dissociation/out-of-body experience that is happening to the protagonist.