As promised, my review of Catherine (story mode):
Visuals: 9/10
The in-game art style is good enough that I actually found myself preferring it over the anime cutscenes.
Sound: 8.5/10
An interesting mix of classical and modern music. Good voice actors, with a few odd deliveries (but on the whole still good).
Gameplay: 9/10
You'll start seeing moving blocks in your daydreams and/or dreams after playing this game for an evening. It's easy to get into a Tetris-like "zone" once you're familiar with the gameplay.
Overall: 9/10
If you like puzzle games or are an Atlus fan, you'll probably like this game. Or possibly if you have a sheep fetish, because there are lots of them.
Catherine vs. Katherine: Katherine
Admittedly, I haven't finished the Catherine True Ending yet.