I got the $1,600 Costco hearing aids when they first came out about a year and a half ago... early 2018. Model KH8? It took about 6 months, many adjustments and much patience by all involved for my brain to stop fighting them. Conclusions:
1. They help me recognize voices better.
2. They are a lousy music player.
3. They were a lousy Bluetooth phone headset for the first year, until I realized they used the cell phone’s microphone to capture my vocals.