I own a propane grill which happens to be a 1992 Weber Genesis.  I’ve never owned a smoker or a charcoal grill for that matter. I picked up the 18” Weber Smokey Mountain a month ago and have sucessfully smoked pulled pork, 2 wholes chickens, and just today baby back ribs. The WSM is easier to use than I expected.  I’m enjoying this thing and hope to for years to come!