I just got one of these for Xmas and it's GREAT! It is pretty small, but it's very solid and heavy and you can still put a surprising amount of meat in it. Since it is well insulated the element doesn't need to be that powerful. If you get one of them standing rib racks you can cook 6 feet of big baby back ribs and still have the top shelf open for the beef.
Here's why I got this one:
Simple - very few moving parts to break.
Easily replaceable parts, including the heating element.
Mom & Pop company in Ohio. Made in China, but that's hard to avoid these days.
Very solid contruction & good insulation.
I can use it for cold smoking, with the right accessories.
other positive reviews.
[copied from my forum post]