I really want to add one of these units to my collection as the "ultimate backup to all of my charger vapes".
I can buy an Iolite or a WISPR 1 from my LHS. Should I pick up a WISPR 1 or order a WISPR 2 online?
Is the 2 really that much better than the 1?
Also, is the Iolite the precursor to...