the writing and the characters are absolutely suberb and yet very simple. The gameplay is so astonishing and very puzzling for the logical physics mind. Even the first person perspective works ironically as contrast to the action fueled mordern warfare replicas. This is very huge, very lonely (there is coop, however) and very fascinating.
I thought I'd prefer the more creepily isolated feel of the first Portal, but the grandness of Portal 2 makes for an intriguing and alternate perspective into Aperture Science's history. Wheatley was a wild companion and the humor was welcome.
Awesome sequel to the original. I welcome the return of the psychotic AI Overlord that is GLaDOS. Particularly useful that the PS3 copy comes with a PC/Mac registration key to play on your computer too.