Just finished. 40 hours on the clock. I probably could have done more of the sidequests and stuff but eh, I can do them later if I want.
I really liked the ending but it's definitely lacking the punch it should have because it doesn't build enough to make it resonate as much. The last fight itself was pretty lame especially compared to the fight just before it. There was also a lot of missed opportunities with Chapter 14 in general. Actually, that's the game in general.
That said, the game was pretty fun and there's a lot to like. I'm hoping the DLC is substantial and adds to the story but if that happens, I'd be kinda salty about it.