Yo, I haven't actually tried the volcano but I heard its worth the money.

I have a Vapor Brothers vape and it kills. It's a very good design and will set you back the $150.

My friend has one that is a knock off of the Vapor Brothers and honestly, its just as good (gets us high). I think it was ~$60 off ebay and the design is very similar, except his has a digital temp reading.