I went with the Stoker because I'm a tech head and I run a drum. I can fill my drum up and it easily last 18 hours in the winter and 24+ in the summer, so the ability to control my Stoker from my cell phone (has internet on it) or any computer with internet basically turns my UDS into a crockpot. I set it in the morning, go about my business, checking it throughout the day, and I've got dinner waiting for me when I get home. Sure I'd love to sit around by the smoker all day drinking beer, but I seldom have that luxary
If your running a stickburner or something that you have to refill with fuel every few hours, you'll probably never reach the effectiveness of the Stoker. If you've got a pit that will hold enough wood for a full cook, the stoker is top notch.