Hardly works. If you put too little in, it just seems to burn it and you can keep hitting it, but not much comes out. If i pack the whole thing full, i can get some vape to come out, but its not nearly as much as i feel like it should be. And the effects are extremely muted, you have to smoke twice as much to achieve the same effects. I played around with the unit for a couple days, trying all the different heat settings, watching videos, trying to figure out if mine was just broken, but it just seems to be a super inefficient little piece of equipment with zero return policy or customer satisfaction guaranteed.