I have driven GT350's, and I drove Pete's 6th gen.
Aside from yeah, the higher belt line. The camera they added for the rear view mirror solved the rear sight issues, and I didn't have any issues with blind spots left and right. Cockpit was great, easy reach, great HUD, all controls easy to find.
I prefer it actually over the Mustang interior.
Engine wise, I loved the GT350 with its 8200rpm redline, but it's not really fair to compare the LT1 against the Voodoo.
The 6th gen Z28 better have the DOHC from the C8Z, that would make it really special.