All of the peripheral characters are interesting, but I found it hard to watch Sweet Tooth himself. Frankly, he just comes across like an annoying, impulsive kid who just doesn't listen. I wanted to root for him, but then he would go and do something stupid to endanger himself and his friends in this dangerous apocalyptic world.
I wish there was more story development about the virus and the initial round up of the hybrid babies, but the flashbacks of the characters' back stories did enough to answer most questions. I stuck it out because Pubba, Big Man, Dr. Singh, Aimee, and Bear kept the story interesting.