i have a volcano.. it kicks ass... and as far as using more product... total bullshit, it uses way, way less product!!!!.. way less.. it will pay for it's self from the weed savings...

i also have a herbalaire, and it is more portable and i would reccomend it to anybody..
www.GreatVape.com is herbalaire... it looks like the happy vappy but it's not the same thing it's totally different... email them and ask questions they are chill people with great customer service..

HTC