This game is truly magnificent. The game's atmosphere is amazing. Valve really nailed the mysterious abandoned laboratory feel this time around. They knew they couldn't just rehash Portal, so they tried something new and it really paid off. The puzzles are fun and challenging, but not infuriating, and the way that the game chooses not to have any cut scenes breaking up the game play makes the game much more immersive. It's easy to get lost in this game for hours. The story is wonderful, and the ending is powerful. I would highly recommend this game to anybody who likes puzzle games, story telling in games, or games in general.