I just finished my 360 stint with my two NYC shows and:
I got stuck in traffic while driving to NYC because I was in a three-way car collision (my car being hit by a cop being hit by someone behind her) so I ended up walking in at 8:20. Muse was already done and I thought, "eh only the opening band - they probably sucked anyway."
NYC2 I took the train - took about 25 minutes to get there from NYC with NO TRAFFIC. Got there early - caught Muse and have to say - THEY TOTALLY ROCKED!
I had not heard one note of their music before the show, but I absolutely loved them. Amazing amazing energy from them and they got a HUGE response from the crowd. They are like Radiohead meets Secret Machines meets Bush meets some crazy wacked out Queen.
Really amazing - Bono even said in NYC1 they are #1 in 21 countries on iTunes, so you know he likes them.
If you are planning to go to the show only to see U2, I suggest you make it in for MUSE - they really get the crowd going, and their tunes are really great.