Our church just got this system two weeks ago. The first week, two of us used it - myself and a woman we help out in our church who has very significant two-sided hearing loss. I experienced sudden sensorineural hearing loss 13 years ago, resulting in 100% loss on one side. Speech comprehension is a significant problem for me despite almost perfect hearing on the "good" side. I had forgotten just how much I've lost in a church setting by not being able to understand what's being said. Both the other woman and I had tears in our eyes within moments of putting on the ear pieces connected to this device. Suddenly hearing sound directly from the podium microphone through the chapel sound system, rather than the poor acoustics in the chapel from the speakers, was an experience that defies description - other than "wonderful!" Clarity is amazing, and it appears this is exceptionally well tuned to speech frequency. I've had as little as 15-20% comprehension in some church services over the past 13 years, and suddenly I had a 100% comprehension experience for the full hour. I am considering purchase of my own receiver just so I don't have to bother with the hassle of tracking down the person that distributes and collects them. I helped a total of six people use the devices the 2nd week, and the reactions were similar to mine in all but one case (he has such severe hearing loss that this device was simply not helpful to him - even his own hearing aid is now almost useless to him).