It gets confusing doesn't it? An audiologist with AuD behind their name has a doctorate level degree from a major university. Those who are referred to as 'hearing instrument specialists' likely have less than a doctorate level degree. Some may have MS or MA CCC, which indicates a master's degree and clinical competence certification. OR, some may only have served an apprenticeship of some kind. Different states have different rules related to licensure.

It's logical to think that a professional with a doctorate degree has more knowledge due to more education. On the other hand, some of those with HIS competency have excellent skills. Modern hearing aids are sophisticated technology. Some people have a deeper understanding of advanced technology. Some people understand 'people' better.

The field of audiology is further complicated by the reality that many people, especially those with adult onset hearing loss, need counseling for psychosocial issues that often accompany hearing loss. Some providers are better at providing that kind of support than others.

All of the major brands of hearing aids mentioned have quality products. Fitting them properly takes skill and patience. It also takes time on both sides. If a product isn't working well for you, it's important to be able to explain why to the fitter. Too often, people get frustrated and end up not wearing those expensive hearing aids.

It's a good idea to create a list of positives and negatives when you're trying out new hearing aids, so you participate actively in the fitting experience. That fitting experience should include an initial fitting appointment followed by another appointment a couple weeks later, prior to the end of the return policy agreement. Is your provider suggesting that? Are you willing to take the time to do that yourself?