I have been using this software for many months. This is absolutely the best email discussion group component for Joomla!. Its easy to use, easy to setup, a huge amount of optional features and tweakability, and best of all…RELIABLE. I don’t know what I would do without it.
I was able to greatly simplify the management of these lists as they are now all administered from within the Joomla backend. I’ve had a couple of small problems which have been sorted extremely quickly by the developer, Holger. This is a great extension, which I highly recommend.