Excellent prompt Delivery Service. Just received the unit yesterday. I Love the look n style of the fireplace. Great quality. But, the insert read that it only covers 400sq.ft., when the ad on Wayfair, said 500 sq.ft., and it can cover up to 1000 sq.ft. I'm giving the insert a chance, but if it doesn't cover the larger area of my home, I will have to return it for the right insert.  But, I absolutely love the style of this product,  and I am very pleased with the prompt delivery service, and customer service. I would highly recommend this fireplace.