The ability to record 5 channels and record about a "Million Hours" of HD programing is wonderful. Another plus that we enjoy is multiple MRV streams at once. Example: My wife can be half way through a recording like X Factor in the Rec. Room and I can start a new viewing from the beginning in the bedroom, smooth as silk. Regular DVR's can only stream one recording at a time. J C P.S. Well worth the upgrade and what few bugs are left to be worked out are far less of a problem than the improved performance of the box.