I used the Walkers Game ear for years until I bought regular hearing aides ($$$$).
The secret to the Game ear in tandem is to adjust the volume to each ear's hearing loss. The way I did it was put one in each ear, close my eyes and snap my fingers going from one side of my head to the other. They're adjusted properly when you can hear the position of your snapping fingers.
Up until I discovered this, I was lost concerning directional sound. After I figured it out, I could tell, pretty much as well as a hearing abled person, sound direction...It's WAY cheaper than regular hearing aides and it works pretty well...