Been looking at these too. As well as the Faro G3 ANR. It would be a headset for a passenger. Went on a long cross-country last weekend and my passenger complained heavily about the cheap PNR headset he used for the 6.1 hours of flying. Took it off several times for relief.
I have had one for a little over a year. I also have the Bose A20 and DC One-X that I have picked up used over the last year. If you go up and compare them one after the other on the same flight, the DC wins out for me. The Bose would be second and the Tely last. However I have worn all three on longer flights without swapping and all work great to the point I would be happy using any of them.