Well I'm new here, I got interested in e-cigs about a yr ago and have not been satisfied enough by what I have to stop smoking analogs. I have a m401 its not bad i've had the same two batteries and 3 atty's that have never died on me yet so thats a plus. But i'm thinking its definatley time to upgrade to a model that will help me want to give up analogs. i'm still smoking over a pack a day. And I must say this forum is great haven't looked around to much just a little here. Now to research and choose a new model that might work for me.