I ended up setting it up this last couple weeks and I like it. Still working on the file sharing aspect, as I need to go through all the ripped mp3's from over the years and get the naming and file info consistent, but just the daily backups alone make me happy.
Totally automagical and the plugin flexibility along with being a full OS under the hood is great. Will be working on integrating it with the Media Center setup (which is already half network based with the HDHomerun anyway) and maybe start getting the DVD collection on the network.
I love watching the hard drive prices plummet daily