Well I downloaded the demo earlier, and it (surprisingly) was playable once I tweaked the video settings a little.
I'm still gonna hold off for a while before I purchase though.
After browsing through the forums, this bit of software kinda reminds me of Vista next to XP.
Sure, the new version is a little prettier, but there are a lot of problems at the moment. The devs are working hard on fixing them, but it will be a year or so before it finds it's feet.
For now, I'll stick to XP (OFP)