I've been a few times. You go into either the Shankly or Paisley Suite before and after the game. THeres a bar and a snack thingy or you can pay extra and have a proper meal. It's not very formal - but its a good day out. Can get in nice and early, have a few beers watch the Sky Sports buildup or whatever. Have some food. THen go in after the game and have a few more beers and watch the highlights. I dunno how you sort it out or how much it costs. My mate sorts it out with someone form his work.