Welcome to the ECF, and congrats on quitting smoking. Vaping...is the only aid to help my father finally quit smoking. It's definitely not a con, it's the only thing that I've found to work. As far as an upgrade, the ego twist's are a nice step up. The MVP2 is also a great device. I personally think either would be fine, and must have's in your arsenal. When it comes to tanks, I prefer cartotanks, specifically the IBtanked brand. If you prefer clearomizer's, the EVOD, iclear30, and Protanks work for me. I'd buy a few different types, find what you like and stock up. Good luck