ive got a volcano classic and ive been using it off and on for about a year. its pretty sweet if you want to get realllly fucked up quick. one thing i dont like about it though is that in order to get 100% of the thc out of the bud you have to smoke it a few times and every consecutive time you smoke it the air your breathing gets drier and drier, which gives me bad cotton mouth. after all the hassel of grinding the weed, heatin up the vape, then fillin up the air bladder sometimes its just easier to load a bowl in the good ole bong.