Use the s-Bahn to get to and from the ground, not the u-Bahn. The s-Bahn has been enlarged to 10 platforms to handle large crowds. The u only has a single platform. Your match ticket will get you to and from the stadium and also double as a city wide travel card until 4am the next day-this is...
You have 2 train options: S-Bahn which is about 40 mins, Airport Express is 25 mins but you'll need to change onto the U-Bahn to get to your hotel. A taxi will be around 30 mins to your door.
It's not that they're up themselves it's to maintain a nice mix and balance of punters within the club. It is a bit of a lottery at times but it is not elitest in anyway IMHO. There are some basic rules which seem to apply, the main two being they dont like big groups of people and you need to...
Which one? Both Tresor and Berghain are in power stations. I imagine it's Berghain? Berghain is simply incredible once inside. Be prepared to queue and be prepared to get turned away as they have a very very capricious door policy and you will see a fair proportion being turned away as you...
Is this the one out in Lichtenburg? Actually in the former offices of the Stasi? I agree it's a must and fascinating and at times quite bizarre; they really did have listening "rocks" and other strange and very amateur spying devices.
There is a public restaurant on the roof of the Reichtag. A way to circumvent the queue is to reserve a table, you can then breeze past the queue, have lunch and wander around and up and down the cupola at your leisure.