I get the same positive experience as yours.
No major difference regarding CPU. Resurrect one 64 bit VSTi from the Black List was very easy. Almost everything works perfectly (new tools and workflow improvements from Cubase 8.5 got 1,5 year iron out to get into N8). Every 32bit plugins are fully functionnable using 32 Lives.
I still have to use Track Import from another project with I was eagerly waiting.