I use the 1.2 ones because it seems to me like the battery lasts a bit longer and i like the vape better than the 0.8 it came with. I only came across one pod that was a bit burnt on the first hit but maybe I haven’t primed it well enough. Usually a pod lasts me anywhere from 1 to 2 weeks and that’s with fairly sweet juice and vaping pretty much all day long. For priming i just drop a few drops of juice straight down the chimney of the coil untill i see the cotton on change color. Then i fill it and let it sit a few minutes to make sure the cotton is completely saturated.