“Very good, this has helped me stop smoking cigare trespass for almost 2 yrs. The only problem I have is 1 out of every 4 I buy are defective. Walgreens will no longer take them back for a refund. I sent back 4 to njoy but of yet to receive a replacement. Since then I have about 5 more that are defected. At almost 8.00 a ecig, that's a lot of money wasted.”