Wow, I just got this in the mail today and..... BANG. I think this beats anything I have tried yet. I wonder why there's no info about it here. It is a quartz cup with no exposed coil or donuts. The instructions says 30 to 45Watts but I have my mod set on 20 watts and it's making such a huge cloud that I almost coughed (I never cough. I have a rep for taking huge hits and never coughing. A born pot smoker. LOL) Still, this thing takes me close. Huge bowl. I don't know how it is heating this giant. Like a witches caldron with bubbling rosin in it. LOL I just got it so I am just starting to play with it but, wow. I must admit, it takes the first 10 seconds to melt a fresh bowl and get it hot. But the second 10 seconds is killer. The fog begins about 3 or 4 seconds and just gets stronger. Top air flow with a carb that gives total control over the air/hit mix. Cheap at $25 So far, this is the best performing rosin vape I have found besides the G9. However, a 510 thread makes this the top of my list. Unbelievable that there is no mention of it here.