There have been a couple of threads here. Most people liked them. Not all. I have the original Nuraphones. Yes, they sound great to me. How good they sound depends on how well they adjust for your hearing. They were NOT designed for people with significant hearing loss, but quite often get very close. You get 30 days to assess them so the main risk is to your time. They are also big and heavy and not everyone can deal with the tips. Not the sort of thing you want to have on your head the whole day.
The Nuraloops are a different beast. I haven’t tried them. After a firmware update, most people finally seem pleased with them. You get the sound of the Nuraphones (without the immersion) in a neckloop form factor. I asked Luke Campbell, the Nura founder, if the personalisation applied to social mode (ie to what comes through the external mics). His answer was no, mainly because of the extra latency that introduced. It was possible, though, that they would introduce that in a future update. Without that, I don’t think you could call them a hearing aid alternative.
Luke Campbell, btw, is an ent. They do have an audiology group in their organisation. You get the feeling that something might happen sooner or later.
Edit: Neither the loops or the phones can be used with hearing aids