I am tempted to get the remaster. The original is one of the relatively few games I got all the achievements on. I don't know if I have it in me to do it all again, because to not 100% it feels wrong. That game still scares me!
I'd recommend it! I'm about nearly done with episode 3 and I've enjoyed replaying it. There also might be some additional expansion content that wasn't in the original game? I'm unsure though as I only played the original 360 version of the game and didn't mess with any potential DLC and the like.