Glitchy tasty's Jayce Diaz reviews Portal 2, and says it surpasses the original in every way:
"I was pleasantly surprised by just how much better the game is than its predecessor. I absolutely loved the original Portal, and this game trumps it in literally every category. The story, for example, is incredibly rich and full of surprises. The writers gave 110% on this project, and it shows. The Cave Johnson segment of the game, while not exactly what I thought it was going to be, was amazing, and did a great job with filling in some of Aperture Science’s backstory without cluttering up the rest of the game."