Received my new ego booster today and have been vaping on it for a couple hours now with some MLV Wurthers and BWB Backo on my ego-t and must say it seems to be worth every penny.Adds about 2 inches in length but still able to keep it in my pocket.TH is excellent at 4.7v setting with clouds of vapor and for me the juice tastes so much better.I've tried it on Dual coils,CE2,R4 and direct dripping and all were excellent.It's like I have a new vp.Will have to wait and see how battery life performs on it.