I am 59 years old and have been smoking since I was 18. I smoked 2 1/2 packs a day for over 40 years. I ordered a tank system electric cigarette and received it on June 13, 2013. I have been tobacco free since June 14 (7 weeks). I tried several different methods to quit smoking and none were successful, but with this product I was completely tobacco-free overnight. I no longer wheeze, wake up in the morning coughing for the first hour, and my wife says I no longer snore. I am breathing better and my wallet is not being depleted of almost $100 a week for tobacco products. I cannot think of a negative aspect of using this e-cigarette (except for a lack of local vendors – almost everything has to be ordered over the internet, but a store in town is getting ready to open!). As a side note, my productivity at work has improved – I no longer need to take that 15-minute smoke break every hour. I highly encourage any and all tobacco users to give this product a try. I no longer pollute my body or my surroundings and still enjoy full smoking pleasure without the poisons from tobacco.