Portable Hookahs walked me through about 7 different vaporizers until I found the exact one that suits me. It was awesome. I was looking for the PAX vaporizers but was unwilling to spend $250 They offered me a new vaporizer called "The Kind Pen Truva" which was pretty similar except in my opinion it was better and only 135 bucks! My friend has the pax and when we put it together, I was able to take a much larger puff and my herb chamber fit a hell of a lot more. I am extremely happy with my order not to mention I receive it only 3 days after purchasing!