I used Walkers Game Ears for 10 years I had them in both ears. I only wore them for hunting, now I got Miracle Ear hearing aids, they are expensive but I got them anyways. Had them now for 5 years and I wear them all the time, except when I go to bed. Glad I got them.
If you can afford get a custom made set, they are little pricey but well worth the money. The biggest difference between cheap ones and really good ones is that you can tell the direction the game is coming from.
Got a set last year for about $45 on Amazon... It's to the point now where any shooting without them is quite uncomfortable. I wore them quite a bit while bowhunting as well, just for the hearing enhancement. Definitely one of my better investments.
I wear regular hearing aids every day, and am looking for new behind the ear devices for hunting, mainly to get more power out of them thatn my hearing aids provide, and deffineately for the protection they provide when shooting.