It's basically an hour-long conversation where Rob Zacny and Bruce Gheryk interview Jake Solomon and talk about their impressions of their time with the game. (It's, evidently, a preview build, but it's the whole game, not just a demo.)
Eh, I've kinda written off info about the game. It's so close now, I'd rather just wait. I couldn't even watch the live stream. I am adverse to watching other people play. That and when news/info isn't in text format.
"Grilled" might be overselling it a bit, but it's definitely an actual interview and not simply a glorified press event. While Rob & Bruce were generally positive about the game, they didn't exactly pull punches when it came to the stuff they didn't.