I have the first two generation of the frames. Love them. Of everything announced today, this is the only thing I am interested in since I wear the older models daily. I like that the battery is supposed to last six hours. First gen battery lasts about 2 hours while the second will last three.
One thing I would like to see on the frames is the ability to turn one side off so conserve the battery. Maybe one day...
Why?? because they are not jammed down the ear canal I mainly use them to listen to audiobooks and for alexa when not at home. They do everything from notifications to answering phone calls. They do just about everything earbuds can do.
One other advantage, a lot of store in my area have signs about wearing earbuds. Fortunately they don't know about the glasses so I don't have to stop the book I am listening to.