I bought a Z Grill so that I would have a bit smaller of a smoker than my big commercial one. The box (pit) isn't bad but the controller sucks, it won't hold a set temp and keeps running up. I purchased a PID controller from Smoke Daddy and replaced the garbage on the Z Grill and now it works great. On hind sight I should have just paid a bit more and bought an actual GOOD grill with a better controller from someone else.