first off, Portal 2 exceeded all of my expectations but this game was well beyond that. This was one of the best sequels ever, everything is hyped up from Portal 1 and there are few extra things added into Portal 2. The whole atmosphere of he whole game is eerie, apocalyptic and strange. The gameplay also makes you feel alone and because of that, it makes the game so much more immersive. There are multiple characters in the game, each with their own unique personality. Props to all of the voice actors (It's amazing). The music and soundtrack of the game is also something to be pointed out, all of which they chose to use are excellent. It's the voice actors, soundtrack and music made the game super immersive, realistic and cinematic-like. Next is the graphics, which is also amazing. I have to say that the SourceEngine that Valve used are decently good (sure souceengine is not the best engine out there but it's playable). I had all the graphics settings set to high and still able to get a constant 120fps out of my gaming pc (I think it's capped out at 120fps so it couldn't get any higher). So in conclusion, as it wasn't obvious enough you should get this game and try it out for yourself. I hope portal 3 comes out soon to continue the sequel.