I absolutely love ERIVES HEATING. Between my business, my personal home, my father in law, and mother in law, we have been using them for lots and lots of years. I would actually give them perfect 10's across the board. Coco is phenomenal. They are the most upfront and honest company I can think of in the field, and I wouldn't use any other company. I have had an excellent overall experience, and I would definitely recommend!