Its huge. Quekng for security was dreadful. Very s...

Its huge. Quekng for security was dreadful. Very slow process. Got to the entrance and queued for ages. finally got the front and was told we had to go to standing enterance hidden behind cineworld. got through security again. Whole process took an hour and twenty minutes. We missed the first song. Treat a concert at the O2 like a flight and arrive two hours early. you might just catch the start if you are really lucky. If your standing go right at the main entrance. Dont be tempted to queue up with the seated people. Do not expect be greeted by anyone who can help you at the enterance or see any signs that help you understand where you are.
Please improve 02.