So it’s my first DaVinci and I watched so many videos on how to use it and did my research so I am doing everything right, but I still cannot get mine to work even half as well as my other vapes that I owned. I really wanted to like it, but it’s a joke - my weed does not even get brown - this thing cannot heat up enough to burn the weed! I will give it 1 star for beautiful and smart design, but it just doesn’t do the only thing it needs to do - burn weed and produce smoke. Maybe it’s just defective but anyways it’s been 3 days and it just feels like a waste of $100. Sorry for a bad review, but my Ooze vape for $80 was just 100 times better and stronger.