Finished it now after 10 hours and am quite satisfied :-D It's very polished (I have encountered no bugs or crashes), the story is entertaining, the puzzles not to hard, there are some nice minigames - one can see that there was much love put into this game. Only the jokes/the dialogues got a bit enervating over the time, especially towards the end it became very disgusting - too much pissing, pooping, farting and vomiting ;-)
But besides that it was fun and kept me interested the whole time :D