I really loved the feeling of the game. It felt similar to the feeling I got from watching Cube, that you’re a lab-rat running through an automated test that has no one behind the one-way mirror. Even though it was only about a three-hour game it has quickly become one of my favorites for the humor, ambiance and the overall quirkiness of the game.
Consider some things after this sentence spoilers.
Though I do agree with you, Hyper, that It would have been cool to have some more levels in it. I do like how they hid the escaping bits and the boss battle by not showing any levels after test 19 when you go to start a new game. It kept the end a nice mystery for me, which is awesome, because I hate when previews and things spoil the ending of stuff.