I had my first time on a converted 747-400 in C on the upper deck. It is all business now and the seating is slidely different than the 748. Everybody got his own area for the feet! However, still no privacy in these new LH business seats. There is only one washroom which is in the front with a lot of traffic. I recommend to take a seat further in the back but not too far because of the galley. They had two crew on the upper deck which was just ok (the crew was not very friendly but this is a seperate topic).