I can tell you this. Adding the right attribute to a file makes a world of difference. We record shows for my girls at home. They are very young, and are not yet adept at using the system. (3 and 1-1/2), by tagging their shows with the "Children" genre attribute, my wife can easily pull up the menu on an orbiter or the main screen in the house, BTW how cool is it that you can use one MD to control another with the Rooms menu option, she uses the gyration remote, and this is how quickly she has adapted.
Bring up the video menu, roll over to genre, select the "Children" option from that menu, click it
Then scroll to the show, click it, then highlight play, and click it. Seamless integration. She can do this in less than 15 seconds.
More evidence that proper tagging and attribute use, makes this system the correct choice.
My wife is not technically proficient, in fact she hates tech, but she can sure navigate like a pro, with the proper tools.