Quality is superb! If you're in the market for a SUPER DUPER FIRM mattress, then you're in luck- this mattress is for you! I have purchased 7 other mattresses from Wayfair in the past and all have been 'medium firm' and they were big hits with my guests. These mattresses, unfortunately, were not. Thankfully, Wayfair has a fantastic 100 night Love It or Return It kind of deal and they make it easy to send back. Lesson learned- when it says FIRM it's....FIRM.