Well I have a special attachment to this story as I found this one better than to the moon.
After all, to the moon was greatly influence by one precise thing, the movie inception.
While quintessence is influence by at least ten different scenario while having completely unique parts.
The characters are also so human like and full of big fault that they are just incredible.
It's actually difficult to do a scenario with such egoistic characters because they won't accept to help each other without compromise, and this game does have a lot of them.
Anyway, I should finish by saying, no wonder that one of your game reive have receive such popularity when your first project was that good.