... United - $59.00 to change from economy (middle seat) to economy plus (aisle seat) and get supposed extra legroom .... only to find out that there is less under seat room if seat is an aisle seat ( due to seat mount bracket design/ narrow type) ... add to that no overhead stowage available .. so limited leg room was less due to my small carry on bag was in under seat stow ... not happy with the experience but a tade better than middle seat ... but not $59.00 worth ...