Considering that this is the first game that Mike Vollmer released it's not too bad for a beginner but could have used some better testing.
It contains instructions and a help system with enough hints and direct commands to help you solve the game. There are multiple endings which increase the replay value and there is a score system to check your progress (unfortunately its pretty buggy).
It feels a little rushed (especially towards the end) and could use more detail to create a better setting. It certainly has an unfinished touch.