Originally Posted by
Jeff_
I found some comments on the forum but that did not help me. If I miss a corresponding thread please redirect me.
As we don't know which threads you looked at, it's hard for us to tell if you missed anything

I stayed very recently at the Kurfürstendamm one and had a good stay. I never stayed at the other one (Gendarmenmarkt), but its location is nice too.
Very close to the Sofitel Kurfürstendamm, you have also the Pullman Schweizerhöf (an ex-Sofitel) which is nice too.