I don't expect DirecTV subs to understand the VIP series and Hopper's multi tuners, because DirecTV never had such technology. I don't have a hopper, but I do have a VIP 722k. The one receiver acts as two. The nice part is for us who lease our equipment is that we have one less receiver fee. There are many positives and negatives. But I must say that the positives outweigh the negatives.
I have 2 ViP722k's & one ViP211k. I also have a HR22-100,HR23-700,HR24-500,H24-700,& H25-500. All of my DIRECTV receivers are connected by DECA & whole home MRV. The BIG advantage of my DIRECTV set up is that I can integrate my HR22 & HR23 into the MRV set up with a DECA adapter on each of them(this ability is also why I currently don't feel the need to upgrade to a HR34 as I already have my 8 tuner max for SWM set up). You cannot integrate the ViP722k's or the ViP211k's into a HOPPER/JOEY set up. For people(like me) who heavily invested in ViP receivers & DVRs,that is a big turn off,especially for those who own RV's & would have to have 2 separate accounts of a HOPPER/JOEY set up for home & a ViP set up for the RV.