I've never experienced any discomfort with my hearing aids. Naturally all ears as well as aids are different. As for buying hearing aids, I strongly suggest checking out your local Costco. They are the leading retailer of hearing aids in the USA. You will save far more than the cost of a membership if you aren't already a member. They do a quality test and they are not sales revenue driven to sell hearing aids. Let Google tell you about Costco hearing centers. I think you will like what you find. In any event, if your aunt needs hearing aids, please see that she is fitted with some. Besides the embarrassment of not hearing well and not being able to contribute to conversations, life is filled with soul enriching sounds that the hearing impaired are missing.