I haven't even tried multiplayer as I've heard the terrible things about the servers; however, this game is 100% worth it just based on the campaign. I bought the game for $3 during last years summer sale and just now got around to playing it and I can't believe it took me so long this game in now on my favorites list and up there with the 2 portal games!

Just as good as the first game if not better in terms of story, however, some of the puzzles took me a little too long to give a 5 out of 5 but that seems more like a personal issue

This is the best game I have ever played especially the mixture of story and puzzle!

This game is pretty good...

This is a pretty fun game with a deep story other than the hello fellow kids dialogue
Wow just finished it and man this game really makes you think I've been thinking about the end all day definitely recommended!

It was pretty good although the story can get a little convoluted overall i would recommend anyone to play it if you get the opportunity especially if you like story heavy games!