I would have given  5 star rating except that the top of the unit was made in two pieces which made it uneven across the length of the board. You should have glued the two pieces together to make one flat surface. The rest of the unit was good quality, As for the fire place box the sheet metal screws used to attach the angle pieces to the fire box were wood screws. those six screws should be self tapping screws not wood screws. Wood screws do not work in thin sheet metal. I know because I worked in steel fabrication for 45 years.