I've been itching to play some Portal, so I was in luck to find this excellent Portal 2 fan mod that just released. The quality is surprisingly similar to the actual game and it has some levels that were satisfying to complete. The new time portal is a really cool mechanic that resulted in me being stumped for a while on quite a few levels. However, I wish there was more of a difficulty curve, as it's pretty much nonexistent here. Overall, it's a fun little experience that definitely helped scratch that Portal itch.