Yes, the 19mm series II go for a lot of money now. The series I run about half of that for a clean example. The one I bought is very near to mint, in the box with hood and caps.
I received the 19 last Saturday and did some testing with it on Sunday, but haven't had any time to go further with it yet. From the little I've used it so far, the rendering looks very nice. Corners are a bit soft wide open, sharpen up nicely as you stop down; I understand this was the big improvement in addition to the size with the series II. No smearing, no color shifting; a bit of blue fringing on specular highlights in certain circumstances.
I'm planning to carry it on this morning's walk. Due to the huge front element, the 19mm is a bit clumsier to carry and work with than the Nikkor 18mm f/3.5 AI-S, which is an exceptional performer on the A7 (a lot less expensive, and a handy size too except for the pie-plate sized HK-9 lens hood). Different enough rendering qualities that they're both worth having ... I found the Nikkor after I'd ordered the 19mm at a price I couldn't resist.
G