Assembly required - not hard, but it did take a while. The oven box size was smaller than expected - side to side it measures exactly 13 7/8" - the 14" Pizza Screen must tilt slightly to go in or out. The pull down door mechanisms are hokey. The ash catch drawer fits very tightly and will require modification to function without catching and hanging up. The first time I got it going, the temperature gauge broke at first use - went over 750 degrees F and stopped functioning. Getting the temperature correct for baking pizza will take some practice as the three pizzas I did so far all come out burnt on the bottom when the top is done. I am reserving judgment until we get this thing figured out.