“I have been using this product for nearly 10 years and originally chose them because of the similarity to smoking a cigarette. I buy strength 16. Quality varies - l have bought hundreds if not thousands of them. Some do not appear to have any content,none of them reach the claim of being equal to a packet of cigarettes. But l keep buying them so can't be too bad. I have never smoked since l started buying them so goal achieved. Just need to get off these now.”