Actually, I went to see it today as I had some spare time and I think they're an ok band for a rock group (although a lot of their songs do sound like anthems which for me becomes unenthusing after a while).
Anyway - it was quite good. The 3D wasn't the things popping right up to your face type but it did make the whole thing really atmospheric, you did feel like you were right up there on stage next to Bono or The Edge or whoever the camera was going to. I would have liked it to have been a bit more adventurous seeing as it was in 3D but maybe that would have distracted from the music, it is a concert film after all.
Overall I'd give it 7/10.