I use a Good One to smoke my pork butts and brisket. It does a real great job. There is a learning curve to it but one you understand it it is close to set it and forget it. I can get a 9-10 hour burn on 2 bags of Best of the West charcoal from Sam's. I add a lulls log of wood on top for flavor. One I put the meat on, I don't open the cooking chamber until the charcoal is burnt out. I don't have the thermometer on the unit anymore, so I can't tell you at what temp I am cooking.
Let me know if you have any questions.