Been using these for a while for cycling. I would say that the sound quality is not exactly great and that the pitch will change depending on where exactly they're sitting. Personally I mostly use them to listen to podcasts so that doesn't matter much to me. The Shokz design looping around the back of your head can also be awkward if you're trying to wear them with a winter hat. Overall I recommend them for people who need a open ear solution. They're also good just for daily life in a city where you want to listen to something while walking around, but want to maintain some level of awareness so you don't get run over or something. Another good use case could be in an office where you want some awareness if someone walks up and tries to talk to you (I often listen to white noise when I'm trying to focus).
On the other hand if you want something for music or you want something isolating, these aren't the right product IMO.