We used this on 4 occasions, and it cooked great pizza each time. However after the that 4th cook our lower gasket, on a pretty new Kamado Joe Classic II, just fell off.  After researching this more, I found this is pretty much to be expected if you use the DoJoe.  If you can accept this, and don't mind frequently re-gasketing your Kamado, then the DoJoe is excellent, as it does bake great pizza. I am only giving it a poor rating for design because it damages the Kamado, not because it doesn't function well.