I've never done it, but we've looked into it a little. Its very popular around here. The only issue I would have with it is that I've read they don't like to "knock". I like my privacy, but I also like living in a community. In the end I think my privacy comes first.
Here's a link to the one just up the road from me:
http://www.sharingwood.org/ You can get an idea of what its like
