Php-ZeroNet is a pretty good script from my point of view although its in the development stage and hasn't developed Tons of features however it has some unique ones, take for instance there Clubs feature, not many scripts have developed a club feature like that. Another good thing about Php-ZeroNet is its easy to use interface they allow administrators to edit the page without having to go to the Administrative CP and go to the management.
Another benefit of have Php-ZeroNet is that its administrative features allows you to see what other administrators are doing. If an administrator removed, edited, added something that you said not to then you can see who it is. This is a very powerful tool for overseeing administrators on your site. Another Administrative benefit is that you can enable you edit menu to a drop down when your site gets unbelievably large with hundreds of pages of content.
Php-ZeroNets Online statistics is another good module. Instead of having to point your user to webalizer (which should only be seen by administrators anyway) you can point them to Php-ZeroNets statistics center updated every page view. Php-ZeroNets submissions module is one of the best modules available. Its easy-to-use, not to mention easy for the submitter to post.
From the Admin CP you can go into categorys of submissions and approve, reject, and potentially delete them. The submissions go DIRECTLY to the place upon approval, such as news will go straight to the news without having to copy and paste, content goes straight to content, etc. Have a ton of submissions? Well its control management allows you to select ones or select all of them you wish to delete. Its time saving, and saves banwidth for having to delete them one by one.
Php-ZeroNets easy to use layout setup (manually) is easy, all you have to do is make certain HTML files and your done. Simple as that.