I don't really want a DVR in the bedroom so I will just keep my HR24 in the family room and the genie in the living room. That should be plenty of hard drive space for me. I won't be having the genie record things it thinks I like - I will be turning that feature off.
I was a little disappointed at the on demand selection compared to netflix. Even the TV shows I found didn't include all the episodes for a season which I thought was really strange. Not sure if I will use that or stick with netflix for 8 bucks.
Many do both.
D*'s On Demand isn't meant to be as in depth as a Netflix or Hulu.