It was very well-written, although there's not much to do besides follow the laid out path. The ending is a bit confusing, like the other reviewer said. I'm not sure if there's something to do during the final scene, or if it's just unfinished, but it leaves something to be desired. In this case, the abrupt ending is not the greatest.
It's not bad, an interesting story, but it just feels short. After finding several endings, each one leaves something to be desired. It was very interactive, which is good. Maybe a sequel is in order?