A bit confused, just picked up a MES 40'' 1200W after reading about them for quite a while. It has the top vent on the left, so I thought it was a newer version, but I can't find it in the master lists, and a few searches don't seem to turn it up. It also isn't on the Masterbuilt website (40'' black no window, which I prefer).
Model is listed as: 20076515
In the process of seasoning it right now, so I probably can't return it (though I bought the extended warranty). Was doing some more reading to try and figure out the best placement for AMNPS and got really confused as to what generation I ended up with. I don't care about BT (I have an iDevices system already) and the window will just get cruddy.