How do you adjust that volume? Does it have 3 or 4 programs? Did you try it, and does it help you to adjust the volume manually?
Suppose, you want to talk on the phone, you set program 3 - How will you know that your set is at program 3 or 2? (See two photos - for example two different hearing aids - Look at these switchers). Mine does not have switch pointer I have to press the buttom to hear the beep for the next level. If I forgot which set I am in, I turned it off and then on. It will set back to program one.
I personally don't like a hearing aid to adjust the volume by itself automatically. That's why you need to test them for two weeks free trials to see if you really like them.
I like digital hearing aids so I guess many deafies choice digital ones. If you really love them, then get them. Without a free trial, you changed your mind that you don't like them, and there is no full refund period. I tested four different kind of hearing aids for each two weeks before I buy them.