Very professional and honest. Explained in detail the benefits of different air conditioners and different features. Other companies were trying to sell UV light which would have required replacing an expensive bulb every year. He was honest enough to say that this is not really necessary and is something that is used to increase revenues. They provided a price for a variety of units and sizes and discussed the pros of each one. Spent 10 hours installing the unit which I didn’t mind at all – took his time and I believe did a high quality installation. Highly recommend you consider them for your AC needs.