I own a new 34 series grill but will say that i read about all the temp swings and wasnt gonna deal with it, so as soon as i ordered the grill, i ordered the pellet pro PID along with it. The controller came in 2 days and the grill took a week to get there. Assembled the grill then ripped out the controller and replaced it with the PID. I have 0 experience with the stock controller but man im completely head over heels with this controller. Keeps temp swings within +/- 5 degrees, not even kidding. Only downside i see to this controller is it has one meat probe, but you can buy bluetooth meat probes online for 60 dollars for a great model. Seriously if you are serious about smoking, do yourself a favor and just invest in a great controller. Pellet pro PID or Savannah smokers make good ones, pellet pro was just more straight forward for me thats why i got that one.