I like them a lot and carry them as one would with headphones. My use case is boring and I mostly plug them into my phone and laptops, but they "just work" on most devices made in the last few years. I use them any time I'm stuck sitting somewhere for more than about 15 minutes.

With this form factor, the main limitation is physical user input, not compatibility or fatigue. There's no battery or adapters or walled garden to mess around with. I would not be opposed to a touch pad or gesture system if it actually worked reliably and didn't require accessories or excessive motion from me.

For now, they're literally just a screen in a pair of glasses, and that's all I ever wanted. I'm sure there will be improvements to this category, but any product that strays from this core functionality will be a hard pass from me.