Pros: Nice size fire box with easily adjusted fire tray, porcilin grates that clean fairly easily, fairly sturdy, flanked by two shelves, removeable ash tray.
Cons: Exhaust vent does not close completely, has large openings that need sealing, other leaky spots that need seals, side vents are loose and cannot be easily made air tight
I bought one of these many years ago and swore I never would by another since it was such an open grill with smoke pouring out of it. Lowes had one at deep reduction, the last in store showroom model,
and I decided to buy it. Why? Well I had become a member to this site and found it was not too hard to close up opening with high temp sealer and fire rope. So $45 later I have a fairly tight Dually that is about 97% more a smoker than when I got it. I used High temp sealer around the door and fire rope along the back front and sides. 1" for the back and sides and 3/8" for the front. I did all of this before doing the break in burn with the veggie oil all over it along with an oily smoke. I also bought a good cover to protect the grill turned smoker-grill.
The Thermometer in the front looks nice but became useless after the first fire.
I do like the looks of the grill and the 4 wheels are useful. I grill on the driveway and we have swirlling winds so I am forever moving it around. The removable ash pan is too narrow height wise and most of the time when removing a ton of ash will spill on the ground.
I can maintain a very good constant temperature in the grill cold and warm smoking now by adding a coal or two every 20 to 30 minutes or so and I am happy with that.
So summing it up, with some work, you can make a fairly decent grill/smoker out of the MF Dually. They are not expensive when on sale and I feel fairly justified buying the second one knowing with some work, I could get the grill/smoker I needed.