I've been using electronic cigarettes since 2009 but didn't switch over full time until 2012. My favorite is the Logic Power Series and my biggest problem was the Blu rechargeable. Blu tastes great and creates a lot of vapor but after a month the charging pack stopped working. This seems to be a common problem and you will see YouTube reviews that tell you the reviewers charging pack stopped working after 2 days! Haha I wish I would've watched them before I bought my kit.