Summary: Easy to hook up, interfaces with cell phones very well, has room for over 1000 numbers in its phone book and large backlit numbers. The only somewhat negative is it had a couple of dead spots in my house due to metal ductwork. I purchased the range extender to eliminate them.
Summary: Really helped with the noise and cutting out on the phones farthest from the base unit. This now makes this Panasonic phone as good as our dead (from lightening strike) AT&T phones. But they didn't need this extra component to work!!!