I have one of the first Shirley Fabrication offset built. I have a vision kamado, 2Weber WSM's and a 22.5 Weber kettle. I grill or smoke usually about 5 days per week on average. The stick burner is by far my favorite cooker in the fleet. If I am looking for the very best in smoked meats Tushka is my go to smoker. I use her in KCBS Competitions here in Europe. There are usually one or two others in every competition I cook in. There is a bond with other people that run stick burners because we are up all night tending fires while others are fast asleep. I am also looking at Ole Hickory to try my hand at a vertical offset that is also well insulated.
Ron has a very good point about cooking with someone that has a stick burner, be careful though, they are more addictive than crack, if you like fire!
Good luck!