I would definitely recommend getting divine tribe/crossing. I have a V5 and it works perfect! The vapor is not harsh at all.
But... There are people who are extremely sensitive to DMT vapor, specially people who have never smoked anything at all. I have "administered" DMT to around 40 people so far (as in holding the vape, pressing the button, they just have to inhale and then I set them off on there journey and sit in a corner and meditate) and I've come across 3 people who could not inhale at all. They tried multiple times and ended up coughing their lungs out and had irritation in their lungs and throat for almost about a week afterwards. Also, chain smokers, in my experience, also seem to have more difficulty. Their lung capacity is much smaller and the vapor irritates their lungs more. So all this is to say that while it is true that if you vaporize it right without burning it, the vapor is not harsh at all, but still there are some exceptions. Those people need to find alternative routes of administration.
این جهان با تو خوش است و آن جهان با تو خوش است
این جهان بیمن مباش و آن جهان بیمن مرو
ای عیان بیمن مدان و ای زبان بیمن مخوان
ای نظر بیمن مبین و ای روان بیمن مرو