Some of us never tire of repeating the point that seatguru is not at all accurate these days, if it ever was. It has seating options on aircraft which have long been sitting in the desert for breakup, with seating which was updated twice after the last seatguru update, and before they were removed from service. For more accurate information, either use this forum's Dashboard, or thebasource.com

The 777-300 makes a huge amount of noise, and while galley work is an issue on the the 787s and 380s, simply because they are quieter, on a 777 you won't hear much from the galley areas in any part of the CW seating. It will be all drowned out. That "may" word - a nice way to prevent being held accountable for accuracy - should be more accurately changed to "will not"