At first, I thought this show was so so but it has grown on me over this season. The lead is an engaging character well played by Rose McIver.
It helps that the brains behind this show (not the eating kind :) ) is Rob Thomas who also created VERONICA MARS which is/was a much darker show. In many ways, Liv's zombie condition is like Veronica's rape - It pulls her out of her comfortable life into something else wherein she becomes a heroine.
What I'd like to see next season is instead of fighting crime Liv and co. fight some
supernatural enemies (vampires, werewolves, mummy etc.).