I tried one of these controllers about a year ago and ended up returning it. After seeing some positive reviews I decided to give it another shot. I’m still in the testing stage and so far have been pleased with this one. They have corrected some of the issues with the app. It still has needs for improvements. It’s good enough if you need to run to the store etc and want to keep an eye out. I haven’t done any long low and slow cooks yet. I smoked a couple of turkey tenderloins today rubbed with Traeger’s Chicken Rub. It performed well staying +/- 5 degrees. The meet probs are with in 2 degrees of my other thermometers. I will continue to test and post the results.