Yoder builds great pits and the ys-640 is built like tank. There is still some learning and software tinkering being done on the ys-640, but that just impacts higher temps. Call and talk to Don, he is the owner, and a great guy and will answer any questions. They also own a store here in Wichita, and you can contact him there too @ www.atbbq.com
The stick burners are very similar to Horizon, but have small differences that make a big difference.