1. It was an appropriate parody of "Twilight," and as you already know, I hate that stuff, so ...parody on.
2. It had a balcony scene, as in, Romeo-and-Juliet style. Gotta love a good Shakespeare allusion, and Romeo as a zombie? Fitting.
3. I was impressed with the writing, especially R's monologue in the beginning. It was witty.
4. The music was good.
5. It actually had an interesting message: there's a funny moment during the opening monologue when R pines for a time when people weren't zombies in the airport where he lives, and therefore could talk. He described it as being "warm" and "connected," and while he mentions this, the visual shows a flashback of how things were before the disease: everyone was on a cell phone or other device, no one was talking to each other or even making eye contact, and it was not a place of warm conversation and connectivity. It was not very different, aside from the undead-ness, from the way it was for the zombies.
The cure for the zombie disease ends up being human connectivity, so the commentary seems to be that we are currently diseased by our dependence on devices, as they tend to separate us more than connect us, and need to fix our communities and families by talking to each other face-to-face and showing kindness to each other. I like that!