Saw King Crimson the other night - VERY entertaining show. Can't say it was amazing, because I don't know their music all that well - mostly just the old stuff. But I really enjoyed seeing and hearing Fripp and the rest of the band negotiate all of that difficult music. I WAS amazed at '21st Century Schizoid Man,' which I thought would sound dated after all these years, but seeing it live was a whole new experience.
They're pretty strict about no photography and even have a humorous audio introduction to the show about why you should put your phones away and just enjoy the music. Very effective. Interestingly enough, Tony Levin has a camera with him and is documenting different parts of the tour, including audience shots from the stage at the end of the show. You can see that stuff HERE.