This hotel is okay. Never having stayed in any other hotels in Germany I can't really compare, but it was nicer than the hotels I stayed in in Amsterdam, Cannes, and Paris.
They have internet access, but charge up the wazoo for it! The rooms are decent sized and probably large for European rooms. We are spoiled by room size in America!
The staff was courteous. . .as courteous as Gremans can be. That is not a slap at Germans at all, they are just efficient.
This hotel is not downtown and I don't know that I would stay here if I were visiting Berlin.