This was my second concert on this tour. I saw them at the first Chicago concert. I am glad I saw them twice because the setlist was quite different between the two. I missed seeing "Unknown Caller" at this concert. I loved the performance and video during that song and was disappointed it was left out. But the band playing "Until the End of the World" nearly made up for that. Great addition boys! I felt the sound was great. I was in the 129 section. My boyfriend said it was muddy...so there you go...everyone has their own opinion. I wonder if the big video screen in the stadium made the sound bounce all over for those in the higher sections. I do think that Bono was having issues with the sound and noticed an incident during the last song "Moment of Surrender" when he took his ear piece out and seemed like he was in pain. Great show though. Wish the fans around me were more enthusiastic...lots of people sitting throughout the concert.