So finally got my hands on the Air and it met or exceeded expectations. It is indeed a shrunken Solo but achieving this took no less than a marvel in engineering. The build and design are finely finished as we've come to expect from Steve and Team Arizer. The heat displacement -- top to bottom -- is remarkable for such a miniaturized surface, especially considering its vapor output.
The Air and Solo work the same in principal but there's a slightly discernible difference. The Solo draws a bit easier but introduces more air to the vapor mix. The Air -- which introduces slightly less air to the vapor mix -- draws a bit harder but produces slightly more condensed vapor IMO.
Arizer finally removed the power charger from the vape's bottom (Solo) and put it on the side (Air) which is a positive. OTOH the Air's slender silhouette makes it prone to tip over more easily than a Solo. I have mixed feelings about the removable battery. It empowers the user but swapping batteries in and out in between sessions to charge is less than an optimum solution -- as is a stand alone charger. I wouldn't wan't to own more than 2 batteries, any more would be a waste. Owning a stand alone charger to charge a single battery feels like clutter.
And as you can see the Air got my dog very very stoned.