I've got a Masterbuilt 40 (from Sam's) and love it. I have used it for brisket, butts, ribs, and slow smoking sausage and tasso. It's not perfect but it has been dependable. It's insulated and depending on what I'm cooking I use the chip loader or my AMAZEN smoke generator. The smoke generator is used for slow smoking since the heat element doesn't cycle enough to keep the chips going. It hasn't replaced any of my other cookers...just added some real nice flexibility to the arsenal.
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