I was fitted with a single NHS one some 7 years ago. When it packed in I chose to buy a pair from a well advertised opticians.
The single one was brilliant, and after 10 years of thinking all of the skylarks had gone on my usual routes I heard then again. I was in tears the day that happened.
When I paid for the pair the difference was amazing, they are bluetooth connected, giving me normal, clear speech music and outdoor modes. I got to chose the modes from a long list. Suddenly being able to hear in most situations made my life so much better. The only time they fail me is where there's a lot of background noise and even in clear speech mode I lose the ability to make out what's being aid to me. Given this was the case 100% of the time before I got the aids, I live with this small disadvantage! I used to have the TV blasting out and still missed half of the dialogue, now it's set to normal levels.
To anyone with hearing loss, mine is age related higher frequency loss and pretty much anything above 4000Hz is lost to me, I'd say go for it. I've been wearing glasses all of the time for 30-odd years and my morning routine used to be, get up, put on my glasses, start the day. Now it's get up, put on my glasses and fit my hearing aids, and start the day.
My aids are behind the ear with a clear tube leading over my ear and into the ear canal. Controls are on the right volume up and down, on the left mode selection. I wear my hair short and many people cannot see the aids until they're pointed out. I really don't care anyway, and while they're a discreet grey, I'd wear them if they were a vivid day-glo orange!