Joomla CMS Overview
Joomla is known for not simple user interface.
It is almost impossible to start working without reading the documentation.
Compatible in different browsers.
Site structure is logically divided into several parts, which also makes it difficult to understand the processes at the site.
Very functional visual editor, works well in different browsers, the best in IE6. Supports files downloads.
The design is not separated from the content, templates are the mixture of html and php which is very inconvenient sometimes.
However Joomla is openSource which partly justifies the creators of this cms. You can provide any changes to the system. But I do not think that someone would choose CMS to start changing it. But adding small scripts (PHP for example) is not implemented.
Provides serious overloads on the server when a number of visitors is large, although there is cache.
There is no clear users division.
But a huge advantage, thanks to which this system has gained such popularity is its free distribution and decent functionality. Summing up, the system is good for simple sites using a standard scheme of design-structure and no dynamic blocks outside the set of CMS modules.
Conclusion:
1. Understandability and convenient interface: 4 points out of 5
2. Design flexibility: 3 points out of 5
3. Work speed: 3 points out of 5
4. Security: 4 points out of 5
5. Functionality: 4 points out of 5