Today, all serious players in the pellet smoker market have switched to digital thermostatic controllers that dictate pellet-feed commands based on a temperature sensor inside the cooking box. Just like with the oven in your kitchen, you set the desired cooking temperature, and the heating system kicks on and off to maintain that set point. An LED display shows your set temp, and most models allow you to toggle between set temp and actual temp readings from the internal thermostat. Actual temperatures will fluctuate a bit as the controller switches on and off to hover around your set temp, but many sophisticated touch-pad controllers can maintain tighter tolerances than your indoor oven. Some pellet controllers also have integrated probes that let you monitor the internal temperature of whatever you're smoking. Wireless remote control and monitoring from your smartphone or tablet are also increasingly common. (You can learn more about pellet smokers on AmazingRibs.com.)
My traeger has had some good moments but it very unreliable. I really do not enjoy cooking with it. I have no confidence in the temp readings and the smoke control. Every time I open the lid the temp drops like 200 degrees. I'll smoke at the "smoke" setting but as soon as I turn it to 225 it spikes to like 300-500 degrees. Wtf? I thought this POS was supposed to be a set it and forget it type smoker. Very unreliable. Temp fluctuates so much and if there is even a slight breeze the temps just go up and down up and down. The pellet feeder is garbage. It will all the sudden just start smoking like crazy because the pellets have jammed into the burner. Completely ridiculous smoker. I use it still but only when I can sit and watch the feeder. The guys comment below is true about the feeder always just using the middle pellets. I always have to check it and push the pellets to the center. Some simple engineering would change this. Never again will I purchase a traeger. There are much better options out there and better price.
Pellet grills preheat quickly, so you can start cooking almost immediately, and the pellets are available in a number of woods, for different smoke flavors. The smoke has a subtle wood-fired flavor with less of the acrid flavor that comes from standard wood or charcoal. For the maximum smoke flavor, it’s best to cook at a temperature lower than 250 degrees, while higher temperatures cook faster with less smoke.