Although I'm not the first, I'll be glad to join the group recommending Smokin-It electric smokers. This is coming from a long-time BBQ cook that used pretty much everything except electric. When I decided that I'd like an electric smoker for the convenience, simplicity and ability to cook in all weather, especially the cold part of the year, I did my research as you are. While I will continue to utilize my charcoal rib cooker and Weber Smokey Mountan and Weber Kettle, they are all different animals. My SI purchase was the SI 3-D. After reading about all of those "purists" that had to have probes going several different ways and digital readouts on multiple devices and free-standing PID controllers, I read about the new SI 2-D, 3-D and 4-D with the Auberins PID controller built in. The benefits are simple and appreciated. The PID controller keeps the heat exactly where you want it, usually within a degree or two. If you're cooking for IT (internal temperature), you have a second meat probe that keeps the IT showing during the smoke. You can set the program to your specific needs for the meat you are smoking. Feel free to check out the SI website for information.
As I side note, a good friend of mine that previously owned a Masterbuilt, was my inspiration to purchase an electric smoker. After I bought mine, his shot craps and he went out an bought another manufacturer's smoker. He told me that I spent too much on mine back in January. While I won't mention the device he bought, after using it for a while and comparing it to ming, he's wishing that he bought an SI. His wife is mad at me because he now wants an SI 3D like mine. You get what you pay for, and in the long run, the way these things are built, it should be an economical purchase. Happy Smoking.