Stayed at Elena's place now the second summer in a row, both times over a month. The appartment is well located in Kollwitzkiez and the perfect hideout & working place for hot Berlin summer days. Perfectly clean, comfortable bed and a good shower. Not much can be said about the location in Kollwitzkiez that other reviews didnt already write, good public transport, many cafes, restaurants, bakeries, wide alley streets & parks. Lovely area. Only two things to be aware of: You will hear the neighbours upstairs, the wall is very thin. And there might not be the most light in the appartment. Both things didnt affect me because I'm neither a light sleeper nor do I need much sunlight (especially during summer when most of time is spent either working at home or outdoor). Thanks to Elena & the whole team for quick & good communication and service.