Love mine. Have had a traeger for 5-6 yrs. Mine is the 075 model which has plenty of cooking space, I've done 4 10# butts at a time.

Only con I have is it depends on electricity.

They have several components that make it work. A pellet hopper,thermostat, feed auger, fire box, glow igniter and a fan.

It'll use the thermostat to control the auger speed that feeds the pellets from the hopper to the fire box while igniting it the first few minutes of operation. Inside the fire box it has small holes where the fan forces air in from underneath. Most cases it'll hold within 5*+/- of set point. Of all the cooks I've done I've had two issues. Both were my fault, I forgot to fill the hopper with pellets one time, the second I had the thermostat probe get real dirty and wasn't reading correctly.