It is nice. I have not used it with wood yet. Going to wait till the weather warms up. With the gas, I had the flame cranked up to the point that it was periodically leaving the oven. I turned it down. Also, I was concerned about how sooty the smoke was, sort of like having the wick on an oil lamp adjusted too high. According to OONI, flame was too big and I did not use the chimney. I sent photos of the instructions (for the stove and the one that came with the gas attachment). The instructions conflicted with each other. The chimney is used at all times. As I said, there was a conflict with the two sets of instructions. Also, the soot never settled on the pizza. The 12 may is small compared to the larger 16 inch. But as fast as you can cook a pizza, average 2 minutes, the 12 is great. Just keep making and cooking. And the 12 is about 1/2 the price of the larger Karu. Ooni also has a forum and all the questions I sent to Ooni seem to come from forum members, not Ooni corporate. Pretty sweet. Looking forward to warmer weather and lots of pizza.