Hi All, As I keep reading more and more information about electric smokers the MES 40" always comes up. When the MES 40" comes up so follows the GEN ##, Gen 2 or Gen 2.5. I have read not to buy the Gen 2. I'm not sure why but when people tell me not to buy something a little red flag goes up in my head. As i said, I don't know why not to buy the Gen 2 and why to buy the Gen 2.5. This leads me to my 2 questions. Can someone please explain the difference and the one to get? Can someone tell me how to differentiate between the 2? Thanks for reading.