Summary: Had a refurbished Panasonic that had to go back because it was dropping calls, which is probably why it was returned the first time. Bought the ATT based on price ($80 with 4 handsets). The Panasonic handsets are nicer.
Pros: Price, reception, intercom
Cons: Proprietary battery pack. Cannot find instructions to rename handsets.
Summary: Much better than the Panasonic I tried recently. No danger of cutting people off as the buttons at the top half are flush with the handset. My other phone I kept the phone close to my face and was always pushing the buttons with my face or ear.