Hearing Aids?

call me naive or whatever you will, but i'm wondering...for those who do wearing hearing aids, how do you feel the sound compares to when you had your 'normal' hearing (addressing those, of course, who have lost their hearing 'somewhere along the line' that is life)? Is the sound simply amplified w/in the frequency range that you can hear, or does it improve hearing in all 'normal' audio frequency ranges? Perhaps I should just google this, but given that my father has 'good' (read: expensive) hearing aids, yet for some odd reason doesn't wear them, i'm intrinsically interested in this thread.

Any thoughts, views, perspectives etc would be appreciated.

i really should try to sway my father to actually wear his hearing aid devices. He spent over 4k on the pair, yet is so bloody stubborn... not to mention, my mother tells me that every two seconds, he's saying 'huh? what? pardon?' to her (and it's driving her nuts! lol). I just wish he would understand that it's ok to be reliant on devices that improve the quality of life - definitely nothing to be 'ashamed of', which is what he seems to think (alpha males, i tell ya...).