Got it a couple days ago during the end of the sale, just started playing it tonight. I'm on Chapter 5... I'm sad because I know it'll be over soon, but aside from how slow the controlled character moves, this game is great!
EDIT: Well I just beat it. There were a couple chapters that were letdowns, but overall it was a good game. 8/10

I know what you mean. It seemed really short, but that's just because it was so interesting. I beat it in about a weekend, which kind of disappointed me, but the story was top notch. The only thing I didn't like about it was some dodgy voice acting, especially when they interfered with the most important scenes.

I'm glad I got this game on sale, 'cause I am not cut out for these types of games. I shoulda known better, because when Myst came out, I bought it right up and was almost instantly disappointed. I don't have the patience for the puzzles, and I'm colorblind as well. hehehe.
I'm trying to play through in 2 days, but I have to cheat like crazy. Even then I have problems. I don't mind too much, because the atmosphere is really great. Other than the harder puzzles, the game is fun to play, but I'm going back to my RPGs :)