Hi welcome yes if you are a smoker then e cigs will be a benefit to your overall health, yes they are safe to use follow the instructions for safe battery usage that can be found on the internet or on YouTube videos by the likes of Grimmgreen or PBusardo, they will cost more initially up front to get going but once you get what works for you you will only need to replace coil/ atomizer heads and your
juice, unless it becomes a hobby for you and you start collecting different mods, rebuildable
tanks and such. Do some research on different mods and tanks and when buying
juice buy sample packs to try to see if you like it then you can buy bigger. Hope this helps!