I am so glad that I decided to purchase this AC by Commercial Cool. Not only did it arrive a day early, it was packed and shipped with care. I just installed it today, it was so easy. After building a window AC stand the initial install took less than 10 minutes. I have slightly vaulted ceilings and this 12,000 BTU keeps it so wonderfully comfortably COOL. Excellent price, Excellent AC, Excellent service. I am very pleased. Thank you Wayfair.