I've never used a pellet-powered smoker before, but I'm dying to try one. Trying to do real barbecue on a standard charcoal/wood "barrel" grill is nerve-wracking. It's nearly impossible to get and keep the right temperature for slow and steady cooking/smoking.
Here's my dream unit:
Unfortunately, the price tag is way out of my league, so I guess I'll keep experimenting with the Kingsford "barrel" that I got on clearance last year (it was the display model left after all the boxed units had been sold).