The Vype epen is a great device, it's very quick to set up and it's great being able to switch between flavours with ease and no risk of leaking liquid. The crisp mint isn't a very strong flavour in fact it's hard to detect the mint at all but the cherry is a lovely flavour! The only thing I don't really like is the size of the mouth piece I wish it was a little smaller or shaped like the Vype etank. I haven't used it long enough to comment on the battery life.