Got my Pro today, it really is smaller than base PS5. Didn't notice any wind up noise as mentioned above. It does seem to have the same issue with my network cable being slightly too small to maintain a solid connection. Guess I'll try a different cable.
Installed Stellar Blade to see how the upgrades worked. I tried the Max Pro setting first, and sadly the ghosting I saw while in Quality mode on the PS5 is still there, but the fps was waaaaaaaay better (TV was saying 50-60 while running around in the Great Desert). Switched to the Pro mode and the ghosting went away while still looking super good, far better than Balanced mode on PS5, the lowest fps I saw was 76, all other times it was 80+, very impressive.
Think I try out First Descendent and Hogwarts next.