We evaluated other solutions very extensively. When a website is desired to be turned over to the client so they can take the reigns of development and updating, Joomla is one of the best out there with its robust ACLs and group-based roles and administration. When set up properly, entire menu systems and sections of a site can be fully secured from the public eye with minimal effort. Other CMS platforms have very basic user management and group administration, leaving a lot to be desired, especially when you come from a powerful platform like Joomla and understand it. It would not be the same if you tried to achieve similar effects with WordPress. 

At the time we evaluated WordPress.

There are many options including Drupal, WordPress, etc.

I had a look at several CMS systems, like Drupal or OpenCMS. Joomla convinced me because it had all the features I needed for setting up an online magazine (e.g. article catagories).

Before choosing this product, we also evaluated WordPress.