A good little component, with a responsive support forum. There are a few small improvements which I hope will be made over time (greater use of access levels, custom fields, further customisability), but it provides a solid framework for any website's address book.
Especially useful is the fact that users can be connected to their profiles, and edit their own details. Also, that they can be part of multiple categories.
I had a particular question about the possible use of Preachit, asked my question on the forum and received help very quickly, providing a good solution to my problem.
Well done, and thanks very much for providing this for others to use.