I used to love the original Resident Evil games, but hated 5. It seemed like they had gone for the COD zombies style of flooding you with zombies all at once and I hated that with the slow control mechanics and limited ammo.
The Dead Space style of earlier Resi games worked perfectly and it felt broken in 5. I think as Iranian mentions, it was built with co op in mind and I can imagine it being far less frustrating played that way.
If The Evil Within can mimic the earlier games, slow and tension building, slow zombies with even slower reloading times, then it will grab my attention. As we've said before with many games, a demo would be nice.