Watched this a few weeks ago. Started strong; totally shits the bed at the end.
* spoilers *
There are setups in the beginning that are not only not paid off at the end - they are horribly betrayed. One of the biggest motivations at the start is our hero is a deadbeat dad, and he'll do anything to fix it. By the end of the story he has different goals, and doesn't even seem to remember he has a kid who needs him.
The twist at the end was a terrible choice. It totally invalidates the old man character, and a lot of sacrifices made by various characters. I plodded through the end, and quickly forgot about this series.
I hear now remakes are coming. With this ending to build off, it will almost certainly be bad.