I would just be nervous about the people taking the cat and disappearing. Like saying, "oh yes we will make the appointment right now" and then not showing up.
A woman who runs a rescue offered to take my daughters 3 little babies that were found in a machine where her husband works. She drove by the house to take a look and from the looks of the place, said she would never have let them go there.
It is hard to find homes, boy do I know that. I just have a real issue with trust.
Thats why I always say, charge money up front for an animal. There are too many ways for people to get around stipulations. And I believe people with bad intentions for animals troll CL looking for free kittens.