With all due respect to the previous reviewer, although I have only had this phone for four days, I have not experienced any call volume or speakerphone mic problems like this person did. Possible a bad unit this person received? I can't be sure.
Call quality has been excellent on both handsets for both the caller and receiver. The display is a bright and pleasent black on white. Outside of the "medley" ringtones which most phones have these days, the normal ringtones are pleasent and professional sounding. I especially like the call blocking feature. If you receive a call from someone you don't wish to, you can program their number in, along with calls that don't list numbers, and the phone will block them. Your phone will ring ring long enough to ID the call, then stop ringing, and give the caller 5 short "busy beeps" and then automatically disconnect the call.
I do have a "cons" list, but it is very short. I love the large letter and number display, and it helps with my wifes bad vision, but because of the size of the characters, the caller id usually requires 2 pushes to view one number. One for the name and a second push for the number. There also seems to be a slight learning curve to learn all of its features. This is the first phone where I've actually had to look at the manual more than once to learn to do something.
Perhaps my biggest complaint would be the usuable distance of the phone. I bought it because it touted the DECT Plus, for greater distances than your average DECT phone. Even the Consumer magazine that everyone knows about raves about how much further you can use the phone. It just must be refering to inside a home. I live in a 2 bedroom apartment, and sometimes have the phone while taking to dog for a short walk. I've found that it transmits only about 100 feet more than my 2 year old Uniden DECT. It is possible it has something to do with my building. I get a very weak cell phone signal in and around my particular building, but as soon as I'm a few hundred feet away from it, I get a full signal. This isn't a huge deal with the panasonic, and the pros outweigh this con, but I would be lying if I didn't say I am a little dissappointed.
All in all, I am very happy with the purchase, though. I still consider it the best DECT phone I've ever owned.