I posted earlier that I bought a MES 30 (model 20070213) last month and the controller went out almost immediately. Masterbuilt advised me to exchange it as the controller is still backordered and it's been over 30 days already. The retailer has this smoker (display on door and exhaust on side) as well as the one with the display on the back and the exhaust on top, which I believe to be a prior generation. Am I better off with the older generation?