Just went to see this last night in Portland, OR...and it was fracking amazing!
The "wall" was made out of the same material that high-quality projector screens are made, and by the time it was fully built, it was (I'm guessing here) 60ft tall and over twice that length-wise. They had some serious projection capabilities and it was choreographed so perfectly that as each new block was added in, the picture spread to fill that block just as it was set down. Totally seamless.
The sound was amazing as well. There were some points where it seemed like the sound-guy let the speakers sit at max volume (distortion), but overall it sounded just like I was listening to the CD, only I could FEEL the music.
Roger Waters still knows how to put on an amazing show. So glad I got to see it with my Dad.
That's 2 concerts off of my wishlist - Pink Floyd (Roger Waters is close enough for me) and Steve Miller Band. Only one left...Fleetwood Mac.