Got an hour of gameplay in before going to work. The game is fine, but needs patching. The PC port runs reasonably well, the performance isn't shit, but I've had a number of crashes, and while my rig is a couple years old, it still runs pretty much everything on the market just fine. I mean, if I can get through Witcher 3 without any trouble, DS3 shouldn't be a problem. But it is. Also, the game seems to have memory leak issues. Basically, I'll be playing it, but I expect to have a frustrating time of it until it gets patched up properly.
Overall, if you're on a PC and aren't about to keel over from a hype overdose, hold off until a patch or two get put in. At the moment, it's a bit of a lottery...