Got this fan recently. It’s very easy to place in the window. I like that it can with different sized foam pieces to fill in the gap between the window frame and the fan itself. I think they’ll provide better insulation than the typical fan folding plastic many come with. The fan is very quiet while running, even on high. With a push of a button you can reverse the airflow. Lastly, when you power off, the vents close so you can leave this fan in the window. Really nice product, and it looks good too.