I stayed at Alexandra's place for about 6 weeks (I even liked it alot and extended my stay by 1.5 weeks than originally planned). I had a great time and wouldn't have wished for a better place. it's truly a home away from home.
Alexandra is wonderful and despite being away she made everything possible to make my life easy. It felt as if I had a friend and family in her while there in case I needed anything. You could really tell that she wanted me to have a perfect stay and didn't do it for the sake of just renting out her apartment and get some financial reward in return.
The apartment is a full house. you have everything you could possibly need especially in the kitchen which I liked it alot. it was clean, very well taken care of and decorated with a fine taste.
The location is very central and within a few minutes walk from the U Bahn Station. Although the flat is centrally located it still felt very quite inside since it overlooks a leafy quite garden from the back.
I would definitely stay here again if I'm ever in Berlin and would highly recommend it to everyone else.