Me and my friends really enjoyed Hae-Ok's flat. It is big, perfectly clean, bright, ideal for a large group (we were 6 people). We had everything we needed: 2 bathrooms, a large kitchen, comfy beds. The view from the rooms is simply spectacular! The appartment is very well located, right in the middle of Berlin, close to all kinds of transports.
Hae-Ok responded very quickly to my messages. And she took the time to welcome us, though we arrived at midnight. I highly recommend her flat