I was part of an international seminar, gathering approx 1000 people from around the world, hosted by the Intercontinental in Berlin. I was very much impressed by the quality and size of the ballroom and meeting rooms offered by this hotel. Everything was run in a smooth and professional way and at no point did anyone get the feeling that the hotel resources were overstretched, despite the large number of participants to the seminar.
The bedroom (standard double bed) was nice, spacious and conveniently equipped. Good bed, quiet environment, silent air conditioning made my stay pretty pleasant. The only issue I have is with respect to the TV set which was the size of a regular computer screen and located on the side wall from the bed. It was not pleasant to watch and disappointing, especially in a 5-star hotel loke the Intercontinental. I expressed this remark to the hotel staff and they acknowledged that it was a rather common opinion from their guests. They however indicated that some rooms were equipped with large TV sets.
Breakfast buffet was diversified and good.
Service overall was nice, friendly and very efficient.
I would certainly recommend this place for seminars and business trips. And it has no reason to be unfit for other travelers, as long as they are not looking for a small guest house.