if you have a SWM setup for your directv system. This unit is really small and its super easy to setup. I could not activate it online for some reason, so I had to call DirecTV directly. Whole home DVR was easy to setup, but I had to reset the receiver a few times to get my network to recognize the unit and the DVR hard drive in my living room. built in deca makes easy connections. For those people who think this is buy to own, I don't think it is, never has been if you buy from legit retailer.
You can also add an RF dongle to this unit for 12 bucks.
BUY THE H25, THIS I COMMAND!