Bought a pro 850 a week ago and its been working pretty well. No big issues with the controller like the 1150 except it needs smaller temp increments.The issue im having is with the app. It will open and bring up my smoker but when i tap it to go into the smoker readout screen it rarely connects. When it does it resets my smoker to S. Now that i know i make sure to go outside and reset the temp but it messed with my cook the first few times and is annoying at best that the app is not working. Anybody else with this issue? I see most posts about the 1150 so not sure if the 850 is a popular model for most. Will call pit boss tomorrow and see what they say. I hope they include the 850 in the firmware update and get that sorted.