Cubase 7 with win 8 - excellent! Been using it for close to 2 weeks now and done some very heavy projects with bands. IT is quite a time saver on loading, exports, and plugs like stylus - very fast. I stuck with XP till the last moment and didn’t want to get caught with a broken DAW and then have to migrate/upgrade and put clients on hold at the same time. Can’t afford that luxury so I planned hard to a year to check sociability between all components and made the jump.
It was the win 8 firewire issues that caused a sweat - need to load old firewire drivers (legacy) and run win 8 in test mode for now. I have created a document on how to do this - took me 2 days to work through and test but 2 days of planned downtime is a lot better than the alternative…