Yeah, with a fresh battery, I would guess 15 seconds. A little longer with a used battery. It has many awesome features...I'm too much drinking and on a phone to list them all.
I do and I also have a pax, atmos w wax pen, and had a gpen as well, until it died as well, lol I should start buying the 15$ gpens and that way when they go to shit who cares..
Oh and the pax doesn't take that long to heat up, with the features it has it' trumps that, but really 15 secs, what else can you do in 15 secs, what kind of world do we live in where we can't wait 15 secs bunch of impatient fucks....