i have the extreme q.. i wanted to try a vape as i had never used one before, but i didn't want to spend $600 on a volcano, so i went with a extreme q extreme kit, it came with all of the bells and whistles, and it also came with an iolite as well, and costs half of the money as an volcano.. for my eyes, i can't see what on earth would make the volcano twice as good as an extreme q for twice the money, and i'm a buyer of roor bongs and all, so i'm used to spending money for what i want, but i don't see what on earth justifies the double price over the extreme q on the volcano's to be honest..
i've had my extreme q for over a year now, and it gets used all of the time, and even comes with a remote control, which is pretty bad ass, and i've yet to have an issue with it, and it came with more than enough spare parts that if you were to lose something, you'd have another one or two to make up for the lost part..
so, my vote goes to the extreme q.. save the extra couple of hundred, and by yourself a nice fat sac to vape in it..