I've had my tvape for 4 days now and I have nothing good to say about it. The herbs get used up after 3-5 pulls, is that the norm, I don't know but for me it blows. I think the battery already got burned out from using it while plugged in. Maybe im wrong but the manufacturer said you could do that. All this while using the lowest temperature, didn't see a need to raise temp. I owned an herblaire 2 , think that's the name it was a tabletop unit that blew the vapor into a bag. Wonderful vaporizer! Am I expecting too much from a portable vape? A whole "cigarette" worth of herbs for such few hits, that's mighty expensive. Atleast a Arizer vape is on the way, hope that's not a waste of money also.