I spent last weekend in Berlin for my stag do with 30 friends.
We had a good time in Berlin but were not hugely impressed with the city. It is very run down/graffiti/empty buildings etc., compared to London it is third world.
We went to watch Hertha Berlin which was great fun and the locals appreciated our vocal support.
The Berlin bar scene though was poor. We went to 'Prater Garten' which had been recommended. It was like an old Wetherspoons, half of us were dining and when the others turned up they were not allowed in as "there are too many English in here", we weren't even rowdy!
We went down Simon-Dach Str. but all the bars were very quiet, not much atmosphere.
The bars on Oranienburger Str. where ok but not that welcoming of English.
Kudorf club was very hostile, Germans giving us evil looks.
We had a great night in CLub Radio Shurn (near Alexanderplatz) though! (Good Quality techno!)
I really don't know how Germany will cope during the World Cup and for a capital city which should be the showpiece of any country Berlin is a let down!