I highly recommend vaping to anyone whilst it is not a exactly good for you, what we know is that the amount of chemicals are like 1% of what is in the cigarette and doesn't contain the 250 poisons and 70 carcinogens.
I found that it took me months to find the right mod, tank, and juices to totally replace smoking and having a quality and consitent experience. Cigarettes for consitency are hard to beat, however with the right Mod/Tank coil build, you can surpase smoking in enjoyment by far.... Actually the part I like about vaping is you can do a lot more of it than smoking.... and you don't feel like crap or get sick or ill the day after.
Many people that get into vaping go back to smoking as the getting a vape that matches what they want is not easy. A lot of shops, just sell crap, and don't care. Mechanical mods, that burn the cotton 5 firings, low resistance coils that means that battery lasts half a day, tank that leaks more than a sieve, a firing that is inconsistent as the battery drains, these and many factors leave you in a situation where your nicotine delivery system doesn't is no longer working or enjoyable halfway through they day. Who wants to be recoiling 2 times a day, or changing cotton or get covered with juice as you faf around in the pub....
But once you have a good mod and tank that doesn't make destroy the cotton and coil and a juice that doesn't gunk up, and you can enjoy the flavour of a juice that has been lovingly brewed with naturally extracted favourings and high grade ingredients you can be in heaven... Smoking just can't replace it..... Your brain still remembers "that great cigarette and coffee" and when you smoke a cigarette hoping it will be good, it is just disgusting. Vaping makes your taste buds recover, it makes your lung capacity recover, and also in my case it helped me a lot with weight loss as I've gone on a sugar free diet. It is my little habit...
Electrical Safety:
I would avoid all those stupid cheap cigar shaped ones, mechanical mods, avoid anything that doesn't haved a screen which allows you to adjust power.... those are the ones that can blow up. A normal vape has several systems so you don't over charge, short circuit, fire for too long etc.... get batteries from a quality supplier, pay the premium and make sure they are not counterfeit.
Wanna Start vaping and not waste money?
I personally recommend for the smoker that is smoking high nicotine cigs like Malboro red, to go for a double coil tank and double battery mod... Smoant Battlestar mod with the battlestar double coil RDTA tank is great.
For the "lights" cigarrett smoker, an Ammit single coil tank. Great with flavour, never leaks, easy to recoil, high capacity.... Any decent mod will work well with this tank... I use a S6+ Mini.... if you have money, look at anything with DNA200 chip, pricey, but it is meant to be awesome....
Juices are very personal things, try many, I go to Malaysia and shop there, many manufacturers and Vape shopws where you can try a, try and try.... There is also the Vapefest events where you can try the products of 40 different juice brewers....