This is a good and intreguing game with some nicely thought out puzzles and a logical progression... most of the time.
The problem is the random "what do I do now?" moments. The game works in time-period slots (look at the clock in the hall to see your progression) and doing something right moves the time on a bit. The problem occurs when you're aimlessly wondering round wondering what you should do. Now, this is fairly standard in a point-and-click game, but in Scratches, most of the time, if you're stuck like that, it's because you haven't used the phone to "Call Jerry" enough or you're supposed to go to bed to move the plot on... This I found very frustrating, especially as you don't even get a hint such as "It's getting late, I should turn in" etc.
Anyway, other than that and the fact that the voice for the main character is so obviously an American trying to sound English it's a really good game. I didn't find it very scarey, but then I'm hard to scare. Still, it's a fun and atmospheric game to play with the odd "shock" moment.
I would advice, however, getting the "Directers Cut" edition, if you can, which apparently has an alternate ending and extra chapter at the end.