Which one are you looking at? They make a few different models. http://cancooker.com/
Looks like they are all sealed cookers so they'll speed things along a lot like the Caja China. You'll run into the "no smoke" argument around here right off the bat.
Southern Brethren BBQ Competition Team
"It's all about getting paid!" - Myron Mixon
"I love being hated in my hometown!" - David Hair
KingFisher Gator Rotisserie cooker, WSM, Stainless 5 burner with IR gas grill, Turkey Fryer, Weber JD Commemorative grill, slightly used Bandera chamber for future use as a cold smoker, Masterbuilt 40" insulated ELECTRIC smoker