The location was absolutely perfect: close to bus and train lines, but an easy walk to many great hotels/restaurants, important historical sites, and the financial area if you're in Berlin for work. It was very easy to get in and out of the apartment as well.
Wera's apartment was a great size and set up for 1-3 guests. The kitchen was well stocked with pots, pans, and utensils if you wanted to cook for a few meals. And the bathroom was a real treat! With an almost full-sized soaking tub, I took a bubble bath every night.
I would definitely stay at Wera's again!