While I never played it, from what I've seen and heard, it sounded like a fresh take on zombies, (and I'm getting sick of zombies for various reasons) and, while I heard everyone was talking up the characters and story, in the end, I don't see how such characters could be "life changing," or "this is the future of storytelling in video games," etc.. Especially since said characters are virtual and not real. That's not to say I don't see someone liking or hating characters, though!
Thing is, I sold my PS3, and I have no plans on getting a PS4 in the near future.