I found that the lower nic levels are not cutting it for me. I just ordered the 36 because im a 2 pack a day smoker (well was). I still have not given up analogs completely yet. There are a lot of learning curves to the ecig and I think I have about figured it out. I use the regular size manual batteries. I do not like the autos because I want to just be able to take a puff and not have to puff to get it going. So I would advise manual batteries. If you get a personal charging case and 2 manual batteries, you will be set for the day and night. The great thing about that is it all fits in the little case and your covered. Another thing is the flavors. Starting out I would get the cowboy because to me it is similar to the marlboro lights only better. Anyhow if there is anything you need during your transition, just ask on here, everyone here has been a huge help to get me this far.