Just got my first 801. At first the vapor production was pretty weak, but I'm noticing after using it a little longer that the vapor production keeps getting better. It doesn't put out as much vapor as my 901, but as mentioned it's improving with use, and the 901 is cheating because I'm not using a standard battery on it.. I think the 801 will be worthy of a mod or two... I really dig the shiny black penstyle. Has anyone ever seen atomizers start off "meh" and get better?