Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Horrendous Quality Control

The concept of integrating DirecTV twin tuners with digital recording capabilities is brilliant, and the user friendliness of these machines is quite good considering the sophisticated technology. But I've only been able to experience it for about six hours before the units fail. Hard drives malfunction, tuners go out; I'm waiting for my third unit. My father has had three bad Philips DSR 7000 before giving up & buying a Hughes unit that has functioned for some time now. The warranty is terrible; 90 days and you have to pay the shipping. Philips should not have put their name on these machines, which all appear identical (RCA, Hughes, Philips) from the same joynt mfr. in Mexico. Mine came from the Philips Employee Store & I'm loyal, but this is pathetic.