Even our plane was 6 hours late and we arrived on the wrong Kopenhagener strasse (yes, there are 2 in Berlin - from TXL airport, Google Maps will point you to the wrong one), Silke helped us by finding us a cab and she was waiting for us in front of the building. Thanks a lot for this!
The appartment was clean, modern, spacious and everything was exactly like on airbnb photos.
We had a very pleasant stay in Berlin, thanks again and maybe see you in the future!