Works well. Window insert is very light weight and poorly designed. If the edges of the inserts were rolled, the extensions would fit firmly together with no opening for bugs.
Complaint FedEx or someone said the unit would be delivered to the front door. Side door is just off the drive way with no steps. Much easier delivery spot. I left notes on both stores explaining I was a physically challenged 78 year old senior and could they please ring the door bell so the unit (just under 90 lbs.) could be placed on the door sill so I could wrestle it inside for safety. Kept watching and waiting for the door bell to ring. Eventually i went out and the driver had dropped the unit in front of the garage for all to see. Never had a delivery made just off the street outside the garage. Was not happy!