I tried them as well.
The image was pretty sharp although small. I was able to easily take a picture by tilting my head back to wake up the device, then saying “OK Glass, take a picture”. I also accessed the New York Times by doing a voice Google search then tapping my finger on the side to open the page. It loaded the mobile version and I was able to scroll by swiping along the ear piece. Overall about as easy to use as an Android phone, but the combination of talking, touching, and head gestures would take some getting used to.