Network of networks - seeking recommendations and advice

Networks for WordPress
or WP Multi Network
Both seem to be solutions for a network of networks... has anyone here tried one or the other or better yet.. both?

Any recommendations?

I want to set up a network of networks, so I can control all from one multisite install, but have different admins and features available on different networks (each on their own domain) within the overall install...
I want to keep them all in one large network to make it easy to move a blog or site from one sub-network to another.