About 20% of the people in my hood are on it. It's terrible, though. Basically, there are these types of posts:

* need someone to do X (X = clean house, fix house, etc)

* lost dog/cat found

* need house sitter

* giving away X: anyone want it?

Also, the ND admins decided to change who sees what, a year or so ago, and I think the revolt scared them. The basically widened the neighborhood greatly, so you'd see stuff from much further away. I hated it and pretty much stopped using it at that time.

The idea of it sounds good. The reality is that it's not at all something I use. Full disclosure: I stopped using FB a few years ago, too.