im a big fan of these e cigs. i used to smoke a little under a pack a day and down here they go for like $6.50-7. also i had a smokers cough. now i know the science isnt in yet but personally i now have only smoked a e pen for coming close to a year and my cough is totally gone. also a bottle of the liquid costs me about 6 bucks and lasts like 5 days so i save a ton of cash. the atomizers are only like $3 and they need replacing every 3 weeks or so. on top of that since it leaves no smoke or smell its great that i can smoke, or i guess vape, anywhere.