GAIA is a great tool that allows anyone who works with Flash to build a full site more easily. You should have some understanding of Flash development, but GAIA is very simple use and implement.
This is defnitely a tool for non-developers, but GAIA also has the flexibility to be used by experienced developers. For PureMVC fans there have been implementations of GAIA on a PureMVC framework. The nice thing about GAIA is that it allows you to access view assets very easily. Read more about it here.
