New to Dice n Dagger

Hey, I've never heard of or visited this club until today, was wondering 'what the deal was'?

I play Warhammer Fantasy, can me and my friend just show up when it's open and play?
What are the costs?
Are there regular tournaments?
How can I arrange a game with a stranger?

Looking forwards to playing in Derby, played a lot in Sheffield be nice to play some new people!