Great question. I would say that they work well.
My wife bought me some before I knew that I had an issue with my ears. They are perfect for talk radio, and also allow you to hear things around you, so they are good for work or home environments. The most ideal purpose (and why my wife bought them for me) is for cycling, so you can hear traffic around you.
I’m not sure what “tier” of headphones my wife bought, but they seem middle range at least. I say that because they are probably better for talk than music. They won’t provide the best ever music experience (partly because you hear the outside world at the same time), but they are definitely usable for that.
Overall, I would recommend them.