This AC works beautifully! I live in southern Arizona and I bought it to place in an airbnb bathroom that has no windows that fit a portable or a window unit. We cut a hole in the wall to vent it to the outside. The room is deliciously cool. The unit was delivered very quickly and packaged extremely well. It runs quietly and efficiently. I am not a fan of portable units, but I am so pleased with this one that I am going to get another for an RV guesthouse.