Vype epen has revolutionised our home. It smells of essential oils and fresh air. My hubbie who was resistant to giving up smoking is now an ex smoker- he has only slipped once when the battery charge was lost so I bought another set so he has two batteries. He enjoys the smooth taste of blended tobacco flavour at 18gms of nicotine and is happy in a while to reducing this also. The pen is stylish and design worthy. The smooth line and burnished texture of its outer casing are very pleasing. The caps are easy to change and no leakage whatsoever. The service from Vype has been very good as ive just bought two lots of caps with their 6 for 5 deal. Delivery is by courier and this means security. Excellent service delivery and product. Never though my hubbie would ever consider this alternative.