No AB review yet.
I loaded up the rig with no textures but just like Michael Kiessling's other rigs, textures are there. Here why:
The character rig uses a normal map, and high quality shading is turned on by default. If your graphics card does not support Maya's high quality shading option, you will get a critical error when opening the scene file. To work around that problem, you can import the scene file into an EMPTY(!) scene, but you will not see the benefits of the normal map. Make sure the nodes will not be renamed when importing or the UI won't work.
For more information, visit his site.