Sony ticked all the boxes, I'm very glad that SSD is in. And by the looks of it, a very fast one! It will be strange seeing ~4GB/s speeds on PS5 and 550MB/s on my PC. Heck, many of my games are installed to my mass storage spinning drive.
I expect that upgrade path will be the same as with PS4base>Pro, including the ability to backup things on USB stick [profiles, saves, gallery and game installs] and restore them on a new console [I'm taking PT with me until PlayStation 10!!!].Do we know how BC work when we have digital games ? We will have to download them again, simple as that ?
VR demands 3D audio. For PSVR they had it in an external processing box, now they can move it internally [which will reduce the price for PSVR2].Audio revelation is interesting, MS went this route with current generation and many of us said it was a waste of resources because unless you have an expensive speaker set up or resign yourself to using headphones you won't notice the difference.