I've read both books. The rise of the governor was actually pretty good. It was interesting to see a group of characters actually do smart things and work together as a team. I liked that things seemed to be going well for the group until a few mistakes were made and guilt set in. Then things went downhill pretty fast.
The road to woodbury was not that good. Lilly's backstory was nothing remotely close to the one TTG/Kirkman introduced in the video game. That would be okay for a book if her backstory was better but it was not. It was not all that convincing. Why not use the TTG backstory and instead use a worse backstory. Her character in the story was okay for most of the book as just a regular walking dead story goes but then her character changed suddenly and other characters then did things that were inconsistent with their characters as well. It just became unconvincing all around.