Visual effects were good, like when the Berserker Zombie rips the guys head off. But the story line was not appealing. Question .... how are the zombies evolving, they seem to be somewhat aware like when Jamie was aiming to shoot a child zombie but Spike stopped him and the child zombie just runs away? Also, how does the pregnant zombie give birth to a healthy human baby? The vague line "The magic of the placenta." Gives zero answers.
One more question, Why was Erik's fiance worried about having lip injections in the middle of an apocalypse?