I purchased a Windmill AC as it was the best looking from the most reliable source I could find. The customer service is awesome! But issues that make me take off a star: 1) an instructional video showing ALL the steps of installation. The one they have now is just a marketing one promoting ease of installation rather than being helpful how best to position the unit when drilling holes and 2) there are folks such as myself who will be taking the unit out of the window during the winter - would like a way to purchase additional decorative plugs as I'm sure they'll get damaged as they are popped out over time