Good regulated mod for the price including battery’s you cannot go wrong. I normally kill dual 18650’s by around 330-4pm during the day but with the 20700’s I can go well into the night on a single charge. Display is decent but nothing great and the flashlight feature is kinda cool and one day when I need it I know it will be there. The fire button is nice a click but I find myself every now and again trying to fire the mod up using the flashlight button. The color LED’s on the side are ok if you like to be seen in the dark while vaping, I never use them ever. There are 2 cons I found with his device. The first is my units battery door rattled. There was vertical play between the door and the mod and it can be annoying at times that the fit and finish isn’t exactly tight. The second con for me is that the 510 connection isn’t centered on the device and larger attys will most definitely hang over. Not a problem for me but may be for you. But if it wasn’t for the battery door rattle this device would get 5 stars.