I stayed for a month in Miljan's place. It is very well located in the middle of Nollendorfplatz, with a lot of restaurants, supermarkets, shopping malls, etc, in walking distance. Well connected to public transportation as well.
The room has a huge & comfortable bed, with a very useful cupboard to organize clothes. The apartment has a fast internet connection and the bathroom/kitchen are in great condition.
Miljan is a very kind and respectful person. He went the extra mile to make sure that I had an excellent stay.
Overall, a great place to stay in Berlin.