Rharbour, I have a slightly divergent opinion from Smoke and Divot, though they're definitely accurate in their praise. Yes, these things are freakishly consistent as long as you're attentive to your prep, your time, and your internal temp; the real beauty of these smokers is they create such a huge "sweet spot" for the smoking process that you rarely miss.
But the truly neat thing, something I'm still figuring out, is that if you're someone who often makes things more difficult than they actually need to be then these smokers will grow with you; you can use different smoking methods, use some aromatics as part of the smoke session, futz around with wood blends or use different foiling techniques ... like any good hobby you can enjoy it as you march endlessly towards perfection and love it even if you never attain that peak.