I bought the 36" about a year ago.
Minor annoyance, the casters were inadequate for the size of the smoker. It arrived with 2 casters on and 2 casters off (I know not why) and the 2 that were on were bent inwards. I bought some heavy duty casters from grainger's and had the local welding shop fabricate some custom fittings. It looked beautiful, problem solved.
!st cook, food was good, easy to hold temp without need for automated controller, etc. It did a good job. One note, the top right (charcoal shoot side) gets too hot to hold your hand on, the top left is warm but doesn't burn the hand. So insulation is ok but not great. Also, the outside stainless skin is screwed on without welded seams. The seams are filled with silicone caulk that starts coming out pretty soon.
Then the burn out according to the instruction manual. Open ball valve and let charcoal burn out. I did that and the real problems surfaced.
Major warpage
The cooking liner bowed inwards so the racks wouldn't slide freely.
The door hinges warped and cracked.
The door no longer had a tight seal
Maybe the 30 inch is good to go but I would steer clear of the 36 inch.
