I started using the this extension a few weeks ago, I ran into a little installation problem on the version for Joomla 3.1, but it was a configuration error on my side, but the support of Douglas was super fast and very helpful. So not only a fantastic, extensive, lots of customization possible and versatile extension but also a wonderful support from the author, I recommend this extension for everybody who wants to go the extra mile for contacts management. Also there are a bunch of Plugins and modules available. Not to forget the very helpful website for troubleshooting and examples. I would give this extension a 5 star +, great job Douglas !!!