I had phonak analogue hearing aids for 14 years and they still work. I do not wear them now because my hearing loss is so bad. I now wear Phonak Naida V UP. So far the Naida's are much better at the lower frequencies but are more noisy in loud environments. I lOVE the fact that I can hear high frequency things like, birds (every once in a while), dog tags, doors creeking, high notes on a piano, and even an alarm on my watch. All of these things I have never heard before. I have only had my new hearing aids a few days and I am contantly asking "what was that?" and am having to learn sounds again and others for the first time. I LOVE Phonak SuperFront hearing aids as well, the best sound quality ever.