It will take some getting used to. The sound quality initially seems very artificial or metallic. I understand that is because the brain has to learn to process certain sounds all over again. My brain still can't figure out why our cat keeps screaming at me.
It was both frustrating and fatiguing to constantly miss a good portion of what was being said. I found myself just "checking out" of most conversations. It became one more hurdle to deal with. It should come as no surprise that the first time trying it out my wife cried. Probably out of shear relief for not having to repeat herself!
I do have to be careful now whenever my ear itches not to stick my finger in, or plunge a Q-tip deep in the ear, until after safely removing the device. One of the best features of the hearing aid though, is the on/off switch. This feature can come in particularly handy at times such as being around unruly children or disruptive pets, during social encounters of the truly boring kind aka any sales presentation or during an election period.
You said you called. Sorry, I didn't hear you. Must have had my hearing aid turned off!