I purchased this for my wife as she wanted to try it as a basic trial but she said it's too complex to understand and operate. I tried it myself as well and have to agree that there is too much faffing about with this particular vaper although the tank is easy to remove and attach. We have both been using the 88Vape Pro-Mod for many years now and have yet to find any other vaper on the market that matches it's simplicity, ease of use and vaping satisfaction.