Sound quality while listening to incoming calls is quite horrid. It's very strange. The quieter portions of the caller's speech are blocked to complete silence while the louder portions come through fine. This makes understandability for quiet or distant callers very difficult. I'm constantly asking callers to speak up... and I have no hearing deficit! It's not that callers aren't loud enough, it's just that the quieter parts of their enunciations are totally missing. Very loud local calls sound just fine. The phone's volume control has no effect on this problem. Turning the volume up high makes everything louder, but the missing pieces are still missing.
The phone has some other nice features, but what good is a telephone with such poor understandability?
Separately: After just a couple of months, the painted numbers on the handset keypad are already starting to wear off.