Absolutely love them. They're not absolutely essential, but they're a nice-to-have and they're a lot more convenient than putting in ear buds.
The problem though is that I would never have thought to ever buy them myself. I feel this way about these AR glasses.
Some of this is the lack of a killer app and some of this will be generational. At some point the 10-30yos will be more used to being permanently plugged in than not. (we're probably already there in some senses, but will go through the same adoption cycle again for AR/VR imo)
I walked around listening to cassette tapes on my walkman and couldn't imagine why anyone would want an "mp3 player" with all the hassles of loading 100 songs at a time onto a computer and then onto the thing etc etc. Minidiscs seemed cool tho?
~5 years later I got an iPod with 10gig of storage and holy shit it was the best thing I'd ever encountered. All my music. Immediately. All the time.