I have the Bella cold smoke generator on my 3DW and I have used it for a couple of months now. I can’t speak from a comparison standpoint verses the cold smoke plate or the A-MAZE-N unit. I did some research on those methods and the Bella and I was looking for a more permanent solution for my cold smoking needs. The Bella works great and it is so easy to adjust the smoke output. I use a 50/50 mix of pellets and wood chips and it does exactly what the video claims it does. It can also be used for hot smoking as well if you want to use pellets. The heat it produces is very minimal and I am able to keep the interior temperature of the smoker very low for cold smoking. Especially if the outdoor temperature is below 80 degrees. Even if it is warmer outside the interior of my smoker doesn’t get much warmer than the outside temperature. It is plenty cool for fish, cheese, etc. I leave my Bella on my smoker all the time and my cover fits right over it. It produces awesome smoked salmon (Lox).