Ya, my wife loves the constant fan noise, and I do sleep better since I can't hear anything else, lol. I have 3 6", 2 4", and a bunch of circulating fans in my bedroom. It's really not that bad, I just have to turn the TV up louder, lol.
If you hang them with bungee cords they won't vibrate through the house. Or at least put some foam pads between the mount and wall. Bungee cords work way better though.