I'm going soon and can't wait - was wondering about the seemingly complicated 'anti-ticket tout' entry procedure. My sister has been and loved it but she was part of an elite VIP group, not the hoi polloi like me!
I, too, was worried about the ticket collection in case I hadn't the right card or piece of paper but it is very easy and speedy. Enjoy - you will love it. I am going again in January, this time without the worries of the ticket process.