Topic: What kind of JRPG is Catherine?

I know it's an Atlus game, but I'm literally going into the game blind, what can I expect from the game?

It's not a JRPG. It's a puzzle game with some elements that are a little bit like a dating sim.

It's broken up into clearly defined parts. At times you'll be at a bar with your friends. You'll drink, talk, learn more about the characters, etc. At other times it's a pretty tough puzzle game.

Interesting story, and fairly unique game.

Yeah, I was going to say, I wouldn't call it a JRPG at all. It's more a puzzle game crossed with a visual novel/dating sim... As @Johncalmc says, it's very unique and hard to label.

It's also harder than a coffin nail, especially on higher difficulties.

The game is worth playing for the story alone. Honestly better than games I've played in the last 10 years. Highly recommended.