Rogue Tempest vs Tempest II- comparisons?

Has anyone had a chance to listen to the newish Tempest II?
How does it compare to the original Tempest?
Also, is there an upgrade available to "II" status from the Factory.

I've been away too long....
I have not heard the two side by side.

You can have a Tempest upgraded to the the II buy Rogue.
anyone else?
Surely someone has something to say about the new Tempest?