This is where J!WHMCS comes in. This product integrates the two systems, so that there is a single point of login, as well as a unified look-and-feel to all aspects of my business. Easy to install, and easy to manage, this is truly a set-it-and-forget-it option for Joomla-based web hosting companies using WHMCS.
Not only is the system easy to set up and use, I was able to update the Joomla- and WHMCS- templates to provide a completely unified experience for my customers - which makes our small company look entirely professional.
I also commend GoHigher for their support. I had several questions related to use and customization of the extension, and was impressed with the speed with which the answered and the level of professionalism and experience they showed.
All in all, a fantastic product for anyone looking to integrate Joomla and WHMCS.