1) Although documentation is difficult to find, one of the project members has a NoixACL demosite with projects and how to's to get you start, great for a beginner...

2)Downloading files is tricky but the noixacl forum has all the links you need to download straight from the project site, so no need to visit. just look out for the repeat message on the forum http://forum.joomla.org/viewtopic.php?f=46&t=341017&p=1856520#p1856520

3)Great secuirty but annoying that super admin is not givien full right by default, but with a disable and enable of the adapters all works great!!!

4)No hierarchical rights seems a bit odd, but according to Joomila (the developer) its more for lgoical organiastion as hierarchical is difficult to code!

Great component with a building support and documentation!!!