Summary: My last set of phones were also Panasonic. But these handsets are slightly bigger, which I like. They're just "larger enough" to make the buttons & numbers bigger, so they're easier to read with my old eyeballs...and easier to push without hitting two at once, with my large fat fingers. The other person's voice coming through the earpiece sounds pretty clear to me therefore, so far-so-good. Can't tell you much about how I sound on the other end since I'm not clairvoyant.
Summary: So far every feature works as stated. Buttons are big, easy to read and use. Display is well lit and large type which makes for easy reading. Easy to program. The Caller Blocking feature is wonderful !!! I have 2 telemarketers that will not leave me alone! They are now blocked - phone rings once, display reads 'blocked'. I would recommend these phones to friends and family.
Summary: This phone is way too cumbersome and complicated to program. It won't show me who is calling me as the phone rings, as my old Panasonic did. It doesn't accept new answering messages I try to put on my answering machine part of it. It wouldn't allow me to access messages and still does a hit or miss job of that. The sound quality is tinny and echoey making it very difficult to hear.