Horrible! First you can't take a back pack inside the arena and they charge you £10 at the bag drop area. Everyone walking with their merch in their hands as you have no where to put it ofcourse. Really unfair treatment and horrible horrible security and staff ! EXTREMELY rude and don't even bother to listen to you. Staff really goes by who they like and rules aren't for everyone just for who they want only. Never again i will step in the O2 arena ever again ! Not to mention that 1 beer is £8.95, what a joke !