I've only had this product for about two weeks, but the next time I have any needs that can be met by Windmill, I will be purchasing them through Windmill exclusively. We initially had our package lost by the shipper and Windmill immediately fixed the situation free of charge - excellent customer service. On top of that, this product is my favorite air conditioner experience that I have had so far - from the opening of the package to the continued use of the AC unit, my experience with Windmill has been nothing less than an absolute pleasure.