I started out with a pellet pro hopper, I put it in a filing cabinet and loved it. A few years later I got greedy for a bigger and badder smoker. Looking all around at gravity fed smokers I decided this is the route I wanted to go. However the cost of these set me off a bit. So i decided to make my own. Total time it took me to build was roughly a month, total cost was around $600. I also bought the BBQ Guru cyber q to control temp and am so happy I did. That thing keeps temp within 1 or 2 degrees of set temp and I can check temps and control it from anywhere with my cell phone. 3 inches of hi temp insulation in the whole thing and more around the fire box. First few smokes through it have been amazing! This past weekend I had the best pork shoulder I've ever eaten and that made me oh so happy. Let me know what you guys think.