Moxi has a pretty seamless whole-home solution. I have a Moxi three-tuner DVR in my living room and one Moxi Mate in the bedroom. The Mate can stream live TV from the DVR and also access all its recorded shows. The Mate has the exact same interface as the DVR. Channel changes and trick-play is slower on the Mate than the main DVR unit, but that's to be expected since the Mate has no internal storage. It also has no active cooling which is great for bedroom use.

I don't like the lack of support (no software updates since mid-2010). The Mate is also unable to schedule or delete recordings on the DVR, but an iPhone/iPad app exists which helps this shortcoming.

Other than those things, it's great. I pay $2.50/month for cable card rental (Cablevision) which costs much less than Cablevision's terrible DVRs. Moxi has a high up-front cost, but there is no monthly fee after that. They seem to hold their value well for resale on ebay.