I wanted a saddle style air conditioner but had brick exterior wall, so the wall is 14 inch thick. This unit, with its adjustable saddle, made it possible to install over this thick window sill. The very low profile of the unit when place over the sill also means the view is not obstructed.  It is a heavy unit, however I was able to self install. I do wish the unit would blow the cool air "outward" too the front, in lieu of "upward" from the top. Overall though it's a great unit!