so far, for long smokes, the amnps has worked great for me without overpowering the food with smoke. I get about 12 hours for my sausage smokes which go one for about 18-20 hours. it also allows me to have more precise temps and lower heat smokes. I go 2 hours at 100, 2 hours at 120, 2 hours at 140, then 160 till done. I have smoke the entire time and I do not think I can do that with the smoke box in the smokin-it and hold those temps. I would get fire instead of smoke because of the air being drawn out of the box.