I have narrow it down to two. I had neck surgery and the doctor said that lost bone density. I was a welder for thirty years. So I need to go to a vap.
The Firefly 2 is by far a superior vape. The Pax 3 is almost the same as it's previous version, just with a few extra bells and whistles.
If moneys not an issue, look into the Mighty and the Crafty as well.