There are a lot of tricks - rotation of still samples, change in relative sizes of atoms, animation, adding or removing borders, highlighting bonds, slicing samples that can help 3D visualization and change of perspective. AViz does all these from the interactive interface.
We hope the packaging in rpm format and the installation instructions
(divided into parts for systems people and parts for individual users)
as well as the sample files minimize this.
Some of my earlier efforts at sharing visualization software were complicated by difficulty of installation. I hope we got it right this time!