I forgot to come back and give my results...
After 9 months with the new Kenwood, I can say I don't much like it. Really. The user menu is pathetic to make simple changes like frequency adjust. The buttons are too small when you're trying to hit one while bouncing around. There is no way to dim down the bright blue light of the display. Finally, I put a bluetooth module into it too, and it often gets hung up and displays "Downoading" for hours on end.
That said, I do like these things:
a) stuck a jack into the extra speaker outlet in the back and ran a female jack to my steering column. Now I can run with my noise-cancelling headset on and understand the the words coming through. (I know, I know)
b) ability to plug in an IPOD for flash drive.
c) the bluetooth adapter is pretty handy for hands-free calling, but not any better than what I already had. Except...you can see who's calling you.
d) HD where available, is great. Where I live, not so great. It cuts in and out a lot. But when I get it the audio quality is SO much better.
e) remote control is handy to wade through the pedantic user interface to make adjustments, and it fits in the empty 1/2 of the double DIN space, using the provide cubby hole.