I have progressed from Zests and Nathos from the NHS in the UK to Costco KS-9 and now KS-10. Fairly pleased with them but the main problem of speech in noise still evades the technology. I look forward to AI assisted hearing aids which I think we should see in 5-10 years, maybe sooner as tech is exponential. When I say AI assisted I don’t mean the way manufacturers are already using the term AI. That, IMHO, is mostly BS. I mean either lip reading so that the speaker one is facing is properly focussed by the HA or even using lip-reading coupled with speech recognition to boost the sound to the level of comprehensibility.