It's for setting up a render farm.  If  you have a lot of networked systems that you want to use to render Carrara files, you use this to set it up.  If you don't want to do your rendering on a network render farm, then no, it wouldn't be worth it.  From what I can tell, the major advantage of this over the normal Carrara network rendering is that you don't have to tie up your production box.