It really is a lot of fun. I have yet to turn on assist-mode and I am through chapter 3. I was pretty tempted during some of the more difficult sequences, but I have held off.
If you haven’t heard, this game is pretty hard, but they programmed in a “assist mode” that allows you cheat and make the game easier. Like Super Meat Boy, but they actually want you to complete the game.
I hope more people pick it up. It is a lot of fun.