These are the first e-cigs I bought, because I could just run into the store and get them, as opposed to buying online. Well, I could NOT have made a WORSE choice! I was smoking less than 1/2 pack of regular cigarettes a day, and when I bought Eco-Cigs, the batteries (I stupidly bought 3) lasted less than 8 hours, did NOT EVEN GET CLOSE TO DELIVERING THE "ALMOST 400 PUFFS" advertised!
All in all, I wasted over $70.00 on these! Personally, I would NOT RECOMMEND THESE TO ANYONE!!! Yes, I am disappointed!