I have the BS, not the 2Stone, but have read a bunch about the 2Stone. Its primary advantages are that it is built to last forever, the main burner puts out insane amounts of flame, it can be run off propane or natural gas, and you adjust the top to bottom heat on the fly. The BS is very inexpensive, is plain steel not stainless ( though mine has held up for over a year now with no real signs of aging ), has plenty of heat, can be transported and used in different locations without access to electricity ( because the motor can be powered by batteries or AC adaptor), runs only on propane, but should be more gas efficient, IIRC it is 60,000 btu burner, vs the 2Stone with a burner more than twice that size - though actual btu's consumed will depend on how high you run the burner. You can adjust the top to bottom heat distribution on the BS, but it is mostly by raising or lowering the bottom stone, and it needs to be cool to do that. Either one would be a great improvement over a home oven. and both get up to speed in no time, and have no trouble keeping up with pizza after pizza, and as the zaman says, if you run the BS full blast, you won't have a problem with the stone cooling off too much, it will be that it keeps getting hotter.