I wanted to but never realised the UK version doesn't have the BD Live features until it had already arrived. I wish i paid the extra and got it imported from the US now.
There were some good questions and then there was some flat out stupid ones. One thing that got to me was the questions that had been answered in depth in the commentary right on the disc.
I didn't see it (no BD Live on the UK version and I don't think I would have wanted to stay up for a couple of hours at 2am!), but according to this it wasn't very good.