So i have not really followed up on my promises of a mega review, mainly because I haven't had time or the space to film a decent video review. I feel like thru water it feels same as a solo. The flavor is really god damn good on the Air. The flavor does not taper off like was a complaint about the solo. Water performance was great. Used my favorite temp (white) a few times and it worked great. At higher temps could visibly milk some of my larger pieces. I have tried it with a PV ground glass gong and a Joda nano gong, enjoying it a lot with the Joda gong. I don't really use it with the solo stems because theyr're too difficult to get in, but I really love the air glass stems. I don't know if airflow feels the same as new version solos. I had a 2014 solo for a short time before giving it away since i liked my m104/m107 more. I thought the m104 was too resistant but the m107 was my favorite. Now I can hit the m104 without any problem and like it most. Since I never really was a big fan of the solo through water because of its resistance, i only used it dry. I can tell the flavor is better overall with the air, and you start getting huge hits as soon as it gets to temp which is truly wonderful. For these reasons I doubt I will be using my solo for a travel vape. The m104 with the fresh VapePower battery will likely stay around for an all-day portable. The solo still is no less of an excellent vape but I think it would be my go to over the Air if I had to pick between having a portable or a desktop vape with me, but the Air is more effortless than the solo, has a lot of advantages - however the solo (especially the old ceramic one with much more resistance) provides much richer and denser hits i believe. I will probably end up getting a couple replacement Air batteries, labelling them, and use that as my main portable from here on out, with the occasional Iolite v2 session Although, if the air turns out to be as reliable as I hope, maybe an Air with a few extra batts could replace my solo altogether... although shame there's no equivalent of the PA function, at least not that we know of. If there's anything else i can speak to on this vape let me know.