I just got my PuriTanks, right off the bat they have two air holes in the 510 stem instead of the 4 on the Protank, took a peek at the coil, it is slightly different in design from the eVod. Coil reads 2.2ohms.
I find the draw practically the same as the Protank on my Vamo, perhaps a bight tighter. The vapor and flavor is good, detractions are the plastic drip tip, (But EVERYBODY has a box of nice drips tips they couldn't use on their Protank before), and the evod type atty is one of the most poorly wrapped attys I have ever seen that still functions. Plan on replacing the atty sooner than later.
This will be a Godsend for those who were waiting for an affordable HUGE Glass
tank without having the metal tip that is a real turn off for some users.