Draft controllers have their place. The egg is perfectly capable of holding temps unassisted. That being said my stoker adds the ability to remotely monitor the pit and food temps, warn me of any issues, and raise or lower my pit temp as I feel necessary from my phone or PC. If I am doing some BBQ on the weekend I usually stick to manual temp control. During the week I can start the fire and let the draft control bring the egg up to temp while I prep the meat. I can throw the meat on and go to work knowing what is going on at any given time. If I feel the meat is getting done too fast or slow I can change the pit temp or use the crock pot feature. I have not use the iq110 but the NW gave it a good review. He did state a large overshoot initially until the controller settled in.
Large BGE, Mini BGE, UDS, Weber OTP, Party Q and Stoker... So Far...