Painting my living room. Does satin go on easier than flat? Husband painted bathrooms satin and it went over so smoothly. When painted bedroom flat, he had a hard time. Before we do the living room with is 3x the size, want the easier way. Is it his imagination? We have the original white walls, 7 years old and painting “color” onto them. Also what is the difference from eggshell to satin?