OK well, I was on San Siro on Wednesday. It was my first ever U2 show. I'm glad I went but I don't think I will do it again, unless they come to my country. Now, I must admit that I like thir music, but I am definately not a U2 worshipper. And I guess you need to be a really BIG fan of a group to really enjoy it live. I don't know yet why but I was kind of disappointed. Maybe my expectations were too high... I don't really know.
About Red Zone:
We went about half an hour early and there were about 60-80, maybe a hundred people already in, most were at the racks, so we got seats. Seats were folded though before U2 went on stage, but there was plenty of space on the ground if you wanted to sit down, which noone wanted
I had a spot on the rack, towards the far end of the rail. Edge came our way once, Adam twice, Bono once. Most of the time they were on mainstage, several times facing the back of the stage.
I wasn't very happy with the sound either. It sounded blurred quite often. I don't know, maybe it's always like that in a live show... remember, it's my first experience.
Camcorders were allowed in. Water and food with no limitations, too. People from RZ in Milan were not allowed to go into inner circle back and forth. So if you want a good RZ spot, I suggest you go early, take a seat and once people start coming, stand up and go to the racks.
I did really enjoy several songs. I liked the techno version of Crazy Tonight and the inclusion of D. Tutu's speech. The show itself of course was great, lights and everything. But it seemed to me that Bono lacked the passion I've seen him perform with on other occasions... Or maybe it's the difference between video and live, I don't really know.
Sorry if this sounded negative, it's not, but that's the way it felt. I see you are all big fans of the group and I guess it will be different for you. Last year I went to see my favourite band Delirious? and they're not a very big band and they don't put up large custom made stages... but I liket it better.
So, my final word is: in a live show what matters most is... you. If you feel the songs and can sing them from your heart, you will enjoy the show, no matter the surroundings.
p.s. One last advice: forget your cameras at home. Or take a few pictures of the stage, the stadium and yourself and then put it in your pocket and forget about it. Enjoy the music and the show. There are plenty of pictures of the group in the web and it was ugly to me how everyone was trying to take pictures of Bono instead of trying to look him in the eyes and interact with him. And I know the temptation to take pictures is great. How do I know... um, guess. Good thing my camera went out of power.