Just to add on the great post: If you are thinking about switching, know that the first 2-3 weeks will be tough no matter what level nic you vape at. Don't go cold turkey immediately but ease into it. Try week 1 = 3/4 a pack, rest vape. Week 2 = half a pack, rest vape. Week 3 = a few cigs, rest vape. Your body will start to adapt a lot quicker than you'd think. In maybe a month or so cigarettes will start to taste disgusting to you. Your first real test will be if you can resist the temptation to smoke cigs when out drinking haha.
I started vaping and stopped smoking immediately, I didn't crave cigarettes or want them at all, but one day about 2 weeks in when my battery had died I was craving nicotine, so I took a puff off my son's cigarette (we were on our way to buy him some vape gear too!) and I nearly threw up. Many people can and do switch automatically, which is why I put that one in there - for those that can't do that, I don't want them to think that they're failing because they're not, they just have to try a little harder.