The second go-around was really something else. The first time I saw the show in '10, I was pretty far back and it was really just watching everything happen on and with the wall, while hearing the music. My interest in the great seats this time was to get a more immersive experience with the wall; sort of like an Imax screen. Turns out the band and performance were far more entertaining. In retrospect, it's really two different productions, depending on where you're sitting. Unfortunately, ticket cost will prevent most people from seeing it twice, but if anybody actually has the means and opportunity, I can't recommend it highly enough.
There were a few changes this time around, but mostly small. Interestingly, the one change that I felt made the most difference was that the uniforms for the surrogate band and honor guard are changed. They're a whole lot more menacing now.