Well, I went ahead and tried it, and I'm only one route down, but I've really enjoyed it. The voice acting was odd at first, but it got better. Mainly when you get away from the first two speaking characters: Kalei and Ramon. Some of it I think is actually really good: Noel and Rosita stand out.
The story is solid, and if you're familiar with biblical hierarchies, plus the positives/negatives of Heaven vs. Hell, you'll have a good grasp of what's happening. I finished Rosita's first, and hers showed some good development in character and in overarching story, though it's not super long, as you're meant to get through multiple routes.
If you can live with no sex scenes and like a good VN story about the afterlife, I think you'll like this, as long as you're ok with playing through more than once. You'll have outstanding questions if you just go through one route.
EDIT: Meant to add that my first route took about 90 minutes. So again, not long.