My fiance and I both got the 401 model as our first e-smoking experience. The order arrived after two days and four days later neither of us has had a real cigarette since, nor have we craved one. It is easy to get used to, and we actually find that we enjoy it more. I no longer wake up with that tightness in my chest or cough all the time. and the product itself is sturdy and convenient. kind of attractive really. very very happy with Freshsmoking.