My brother has the Grozny roccbox so I thought I would try since this had the two burners and the rotating stone. Like the rotating stone! Don't like the fact that the metal gets hot (roccbox has a outer shell that doesn't) BUT the biggest disappointment is that the oven doesn't get any where near 900 degrees. I have a temperature probe and it gets up to 700, no higher. Very hard to get the dough cooked all the way through. Roccbox has a huge flame, this one is small and the coking element under the stone helps but not enough to get temp where it needs to be.