Works great,pushes plenty of air better than most units i've owned in the past ...It fits  full size windows fine and works best on the exaust setting..It make quite a bit of wind noise. You will want to use this on a window that you can clean the window screen easily to keep air flowing well..I put this in the kitchen,I have storm windows so i use the inner window to mount it so i can leave it and just close the outer window down in front of it when not in use.