I was actually a pack a day smoker AND a Marlboro Snus user. I used 1 Snus pack every evening while watching TV. I also used Snus in places I couldn't smoke, such as movie theaters, on planes, in long meetings at work, etc. Since I started vaping I have not used Snus or smoked an analog. I still have 3 unused Snus pouches. Granted as MF DOOM points out I have only been vaping for a few months, but vaping can definitely help with Snus craving as well as cigarette cravings.
I started on a $20 kit with pre-loaded catomizers. Then I moved to better cig-a-like batteries and filling my own cartos when I still am currently. Although I am now looking and a slightly bigger system.