But the storytelling was incredible.
Seriously. Its a room, a single character, a voiceover, and occasionally stationary things that shoot at you when you enter their narrow field of vision.
And yet they made such an incredible experience.
The game itself is respectable, but really really short and not too challenging. What made it so incredible was its minimalistic approach to pretty much everything.
And when the game first came out, GLaDOS was incredibly funny.
I remember showing the game to some completely non-gamer friends, who wound up holding the phone to some of her audio clips and sent really creepy GLaDOS voicemails to her boyfriend...
[small]College was weird...[/small]
But yeah, I can see where you'd feel like it was a letdown over all the hype, but if you try to remove the expectations from your experience, it should at least get credit for making such a fleshed out experience from such a short game.