I just bought a Blue Tooth 30 inch from Bass Pro yesterday and have yet to set it up and use it. When I do, I'll report back. The 40 inch was available for $100 more but I decided on the 30 inch because it's just my wife and myself. I'm not feeding a family anymore. Just an occasional visit from the kids or a small party. I'm hoping the 30 inch has all the bells and whistles of the 40 inch, just a bit smaller. We'll see. I like the idea of stainless steel. I hope it has it inside primarily. I've got a smart phone so I like the idea of being somewhere else and checking on the temps of my smoke regardless where I am. It's all new, and I'm pumped. This will be my first smoker. My nephew had a Gen 1, black and simple and it worked great. Before he introduced me to it, I had always tried to smoke meat on the BBQ with mixed results.