I've testing the Ziola for a month now with amazing success. Argheri's business owner, Chris, asked me to test their new electric oven because I run a cafe and make pizzas out of a commercial electric deck oven, and Chris wanted my opinion as to how it compared. First impressions were that it cooked pizzas the same if not better than my deck oven using the same dough we use in the cafe. We normally cook our pizzas around 380-400 degrees celsius. The cook of the crust and the base came out spot on. I used the cream stone first to see how that goes and it cooked great. The pizzas were indistinguishable from our cafe pizzas. Which for the price point of the oven is incredible. I have used the biscotto stone on many occasions. It definitely cooks a beautiful neapolitan pizza with leoparding over the crust and base just how I like it. I tried 420, 455, 485, 500 degrees and found each temperature had it's own characteristics, all very delicious. The other thing which surprised me was the pizzas never burned even at 500 degrees using the biscotto stone. Using the biscotto stone at lower temps (300-350) I preferred the cream stone, so it's nice that you have the two stones to use and choose from depending on the pizza you are going to cook. All in all, thank you again Chris and the team for letting me test your oven, I have recommended it and you to all my friends. Good luck with the oven, it's a winner.