Pros: Conserves heat and has stable 225 temps
Cons: Can't think of any, for the money it costs.
This is one BUTT SMOKING MACHINE. Its very nice do be able to do a 13-15 hour overnight smoke on a big 10lb butt and not have to get up and feed the smoker wood at 3AM, watch temps, etc. The Temp gauge is about 10-15 degrees cooler that actual temp...not a big deal since I use a wireless thermometer with temp warning feature....This is a Home Depot exclusive smoker and is nearly identical to the highly rated Masterbilt two door propane smoker.
It came well packaged and was easy to assemble. It has wheels on the bottom back legs and vents on the bottom sides, along with a grab bar above the top back vent for easy moving. I modded the top door before using by laying down a thick beat of red ATV silicone around the edges ( NSF grade Permatex from Autozone ), covering with waxpaper and closing door to let cure overnight. Worked GREAT and makes a 'nearly" smoke tight upper door.
It will hold consistent 220-225 temps if you fiddle with the tank regulator...only open a 1/4 turn and use the lowest heat setting and you will be fine...I can get consistent 220-225 with occasional floating up to 230-235 or so..this in Florida during fall nighttime temps of 75F. I might add a needle valve for lower temp smoking in the summer but to me that's not a big deal since I mainly like to smoke butts and ribs with occasional chickens.
When I add wood chunks I only add one chunk at a time and position it near the outer edges of the firepan away from the direct flames coming through the vents. Works just fine with resulting Thin Blue Smoke and no flareups. You don't need to put a lot of wood on this smoker to get a nice smoke...remember you aren't heating with wood !! When I smoke with chips I wrap them in aluminum foil, puncture some holes and toss right onto the chip tray...NOT A PROBLEM.
The lower vents can help with temp control by venting more air into the bottom...remember, you aren't adding more air to a fuel source like charcoal or wood, just adding more air to already stable-burning propane, which circulates cooler outside air into the smoker...doesn't provide air to ramp up charcoal or wood burning...this works especially well if you are using foil wrapped chips; you'll need to be careful if you are using chunks as they can catch fire.
If you want a true pro smoker then pull out your credit card and prepare to spend big bucks. If you are just needing a smoker that can handle a couple of butts or a couple of chickens at a time and get excellent results then this is a good buy !