A very handy little guy. It puts out plenty of vapor and is mostly problem free. I've never had one of these leak, only occasionally it gets a little flooded on the inside but that's easy to fix by sticking a twisted piece of paper towel in the top and soaking up the excess liquid. It's very pocket-friendly and means always having a good vape handy without having to think about it. I always keep a couple extras of this around for giving to someone who's interested in trying out vaping.