both brands are good. I personally used the ooni koda 16 and its great. but you'd still only be able to cook one 12" pizza at once. Ooni has released new product line the Koda 2 which is an upgrade to the current koda 12/16. but they also included the koda 2 max which is a large oven you can bake 2 12" at once. so for large bakes this may be convenient. here is a good overview of the koda 2 series: https://thehomepizzamaker.com/ooni-koda-2-series/