I saw a post from a new member who was led to believe that quitting should be easy because she didn't smoke that much. It is basically impossible to predict what withdrawal will be like for any given individual.
Neither the amount smoked per day or the duration of the addiction can accuratley predict what withdrawal will be like on any given attempt. The other post worth reading addressing this issue is the post "Every Quit is Different." It explores how a person cannot even predict the course of a withdrawal by their own past experiences, let alone from the experiences of others who may have just had similar smoking histories.
The concept though of an individual thinking that quitting smoking would be easy made me think of this one. Quitting may in fact turn out to be easy for some people at some times, and when it happens, great. No one though should be setting up as a criteria for success that quitting has to be easy. Quitting is possible for all people, whether it is hard or easy, if they make and stick to a personal commitment to never take another puff.