I didn't enjoy this. It was way too easy to just get completely stuck. I'm with everyone else that level 2 was unintuitive. I got stuck on the computer. Even after looking in the comments for the solution, it was never possible for me to rename the files. Not sure what the note was for, as the F2 key never did anything. Looking into the comments it seems that the common problem with this game was the obscurity of the information that was being presented to us. A good puzzle game makes all of the tools we have to use obvious, but obfuscates the path to the solution. When you don't understand your tools or your way of interacting with the game, it tends to lead to frustration before anything else.
But hey, maybe I'm just saying nonsense because I'm bad at the game or something. Sorry I couldn't give a more positive review.