Ok..ripped 12g...I got this and A nirvana 7g and ok..something is wrong with the device. or atleast the one I and the other review got. Upon my first hit it drained the battery..literally the longer you hold the button the battery drains at about 2% per second. I got a nice buzz (about 3 mins) then a bad headache..it looks like I got 2gs in one hit. I removed the reservoir and put it into another disposable. Now it burns right..so if you get one plan on mods..the flavor is barely there but I've had worse..all in all the device is the problem.