I've decided to return the Vivo Air. The lack of LTE is just inexcusable in 2015 (especially being on Cricket, where HSPA+ is limited to 4Mbps and 300ms ping times are the norm), and paired with only 8GB of usable space I just can't settle, even at only $199.
I will say though, it truly is one of the most beautiful phones on the market and only having 1GB of RAM didn't impact it's performance much at all. I also found myself impressed by the cameras as well.
Not a bad phone at all for under $200, but some pretty huge compromises were made to hit that price point, and a fresh coat of paint can't overcome them.