Since 2014, I have had 5 AuDs treat me. From 2014 to 2021, I had 3 AuDs rotate through a corporate owned office. None of those 3 wore HAs. I felt that 2 of the 3 were competent, but the third was a dud. I also felt that they were trying to upsell me every time I saw them. I really liked the Halo HA I got in 2014, but hated the Audibel that replaced it.
As a result of general dissatisfaction with the sales pressure, the Audibel HA and the last AuD not really having a clue about what he was doing (which is probably why I hated the Audibel HA), I changed clinics. I went to a clinic that was owned by the AuD whose name was on the door.
At the new clinic, the AuD/owner also wears HAs. Therefore, he has experience as a user as well as an AuD. His hearing loss is age related. As he is nearing retirement, he has a new AuD working with him. I suspect she will replace him in the AuD role. She has had hearing issues all her life. When I was in the booth, she had me wear her remote mic so she could hear my responses.
I know this is a small sample size, but IME, AuDs that are users of HAs make better AuDs. Being able to speak from experience rather than just learned info adds to the depth of service they provide.
FWIW, the corporate clinic did not use REM and the private clinic does each time I have a new audiogram, which is annually at the private clinic. The overall cost at each clinic was roughly the same but the value I have received from the AuDs who wear HAs has been significantly better.
What is your experience?