Alright, let's get this out of the way right here at the start; Warm Bodies is Romeo and Juliet with zombies. Her name is Julie. His name is R. They come from 'families' that hate each other to death (and beyond). He's got a buddy named M. She's got a confidante who wants to be a nurse. There's even a scene where she's looking down on him from a balcony.
So yeah, it's Romeo and Juliet with zombies. But that just tells us what it is; it doesn't tell us if it's any good.