Wanted to try this out, but sadly kept getting an error whenever I tried to run it. Certainly looks good from the screenshots and video though!
Error was "The procedure entry point CreateDXGIFactory2 could not be located in the dynamic link library dxgi.dll". I've had similar errors with Unreal before (with DXGIGetDebugInterface1) which I think are to do with the fact I'm on Windows 7 (though they don't usually stop the game from running). Based on everyone else's positive feedback though, I seem to be the exception not the rule, so I wouldn't worry about it. =)