We ordered a new Windmill AC because the old unit we had needed replacing. We were looking for something more modern looking and definitely quieter. It is the quietest AC I have ever heard, at the beginning I had to go up to it to check it was on! It looks amazing, sleek and unassuming. Will be replacing my other unit soon and will get another one of these. So not hesitate to buy this, quality product and does exactly what it says on the box 9x quieter.