I really like my 508 PVR. I just got yesterday. It comes w/ two UHF remotes too which is a nich touch. I did lose the audio on it once when there was a timer conflict, but the hard reboot solve that issue. I didn't lose anything. It's my first PVR, so I still learning the ropes. I really wanted the 721, but the 508 only cost me $199. I think this will tie me over until the 721 PVR comes down in price a little bit.