On April 15th, flew UA 2091 IAH-IAD in seat 10L after an equipment change the night before departure from a 2-2-2 front cabin what had my wife and I originally next to each other. UA reassigned my wife to 9L and me to 9F, which I changed to 10L. It was my first time in one of the even numbered seats, which I've managed to avoid because usually traveling alone, but wanted to make sure my wife had a good experience, which she did. 10L only has 1/2 a window, so not exactly an ideal seat. Probably should have stayed in 9F.