I recently went to see my Doctor with hearing problems. A misspent youth in the entertainment industry was the cause. She sent me to get tested at the local hospital.
The test showed a drop in hearing in both ears, one more extreme than the other.
I asked about getting private Hearing Aids. The advice was, yes they are good but start off with the NHS ones, to get used to the concept of wearing them and to discover what you feel is most important in a hearing aid. You can then trade up, when you have mapped out your needs, as opposed to the accepting the latest selling gimmick which they will try to convince you to buy.