I was seated in the back of the "bus" on a tour of India. I flew 15 hours from LA to China then another 5 1/2 hours from China to India. Both flights were smooth with great landings and the return flights were also very smooth. The food was not so great so take snacks in case you don't like the food. Knee room is at a premium as in most economy seats but it was especially tight on the larger plane going to China. The planes were very clean and the bathrooms were cleaned regularly on all the flights which was much appreciated.