Purchased a Davy Crockett last spring and one of my first cooks was an 18 lb corned beef brisket. The Davy is wireless, and the app monitors the chamber temp as well as the meat probe. Cooked on the Davy for 2 hours @ 275F and then foiled into the oven for another 2 hrs @ 250F.
This was one large chunk of meat!
The app is quite good - set it and forget it for the most part
Looks rather large in the tiny cooker
We used this pastrami for a wide variety of dishes, from pastrami in hash browns (you have to try it to believe how good it is) to Reuben pizza