Wow. I've crossed the 4 hour mark, thinking this would be your standard 10-12 hour gigs. 22 hours will make for a very solid storyline. As it is, I'm in the village (if there are other maps, I don't know about them yet) and just killed the lake monster. I know that a beast named "El Gigante" has been unleashed but I haven't seen him yet. Sounds like I have a ton more to go.
Still, I'm loving it as well. Great game!