Why Another CMS?
This is an execelent question. The advantage to using SASS::CMS above the other CMS's is that it is developed in-house by Social Action Support Services (SASS). This enables SASS to implement new/custom features much faster than using plugins for the other CMS's because too much time is spent deciphering and re-writing someone else's code to work in some framework. Instead SASS can develop a plugin that will precisely address your need in a fraction of the time.
SASS has already developed many of the desired features. On top of general content management, SASS::CMS has components for a blog, gallery and newsletter. More components are in active development.
However, many of the advantages to using SASS::CMS could be seen as disadvantages as well. SASS::CMS is young and has just been released out into the the wild. It does not have the large communities of developers that the more popular CMS's have.
