I'm not a fan of huge arenas with big-budget spectacles; I went to see U2 because of the music and the aura of these legendary musicians. So the acid test for me if whether, when I close my eyes, I'm still as impressed today as when I first heard Sunday Bloody Sunday all those years ago. And I was. This is still the band that made my hair stand on end and has bourne me through the generations. The spectacle is amazing, but the music is quite simply beyond measure.