We full time and DH just got hearing aids a few months ago. He probably has the start of Minier's disease which runs in his family. The hiss was driving him nuts. He went to Sam's Club because he wanted to be able to get them serviced anywhere. That was such a good decision on his part because in the beginning, he did have several adjustments to make.
I just asked him and he said he background noises are not a problem for him. . . he doesn't notice them. He has several adjustments he can make himself. We were out to eat last night in a very upscale, but VERY noisy restaurant. So noisy I could not hear the friend next to me. He said he turned them all the way down and he was fine and he still could hear when I spoke with him. And best of all, most of the hiss is gone for him.
Dale