I have the HR34, HR24, and 2 H25s. I really went with the extra DVR since it was no extra monthly cost for DVRs(unlike Dish), plus I swung it for free due to an installer drilling a bunch of holes in the side of the house after I told him not to mount the dish that high as it wouldn't work there...guess what, it didn't work and he had to lower it (that's another story). Since the system was scalable and I was only a new customer this time I went with it. Would it really bother me not having it? Nope. Do I enjoy having it? Yep. 7 tuners is awesome...9 total in the house.
I looked long and hard at the Kangaroo system but the thing that just set me back was the 3 tuner deal and the shared tuners. Even with 2 hoppers that would give me 6 but take off the 4 live tuners(for the rare times all 4 are watching live...rare but I always plan for the worse and it does happen some times). That would only leave me 2 tuners left to record and one would be tied up with PTAT. That wouldn't cut it. So it was a no brainer to go the DirecTV route for us. On the financial side it was also a no brainer, bill cut in half, new equipment, more channels, MRV, and all rooms now had HD. Win-win. Another issue I had was no OTA on the Kangaroo system and I like being able to get my adjacent market's locals as well.
Now that we have the system I'm glad I went this route and couldn't be happier. The 5 tuners on one box is down right awesome! What's even cooler is seeing 7 firing at one time, and a mixture of everyone either watching recordings from either box or live TV all with ease and no fussing with settings or stuff to pick which box to watch from. The number one thing is the utter silence...no complaining or yelling of "can I skip this?" "you skipped my show!!" "where's my show?!"
You guys can have that shared tuner garbage. If I really want to put one of the H25's in kangaroo mode, all it takes is pressing the record button. Done. If you really wanted to get down to things, I could swap the H25's for HR24's for no additional monthly recurring costs, no extra dish or other weird equipment, and all the programming would be in one big unified list between all the DVR's. I want to see you make 4 hoppers do this, all you get is 1 dish and 2 cables from the dish though. I doubt you could even build the account order in the first place