Hey all, I was lucky enough to get mine. This is one great mod and does everything it claims to. I have been playing with mine all week and I'm very impressed. It works on any atty even LR's and if you forget to reset your settings down to an LR level, it will warn you to prevent damage to your LR atty and will not fire up. I find this is very handy in my case because I know eventually I will forget. I have many mods and frequently change attys from one mod to another so I know it's just a matter of time-have done it before. It comes fitted for an 18500 batt that lasts me well over a day of moderate to high vaping but I also bought the extended cap that enables the use of an 18650- the AW high drains are recommended so thats what I use. This mod is very user friendly and easy to use, very accurate in it's readings, tested it with a separate meter and the numbers matched up every time. Do not hesitate to purchase one of these, worth every penny and solidly built out of stainless steel. The only con I can think of is the color-a dull gray. I wish they had built it to match the caps- a shiny finish, even a brushed stainless would have been better. But hey this the first run, I hear they're already planning some other colors including a shiny stainless if enough people request it so I guess they will get a second order from me. Get one if you can guys, this is the future.