My boyfriend and I had a great time in this lovely flat. We stayed there for 4 nights and it was perfect. The flat is located on a quiet residential street, however there are a few bars and shops just around the corner. It took us just about 10 - 15 minutes to get to the city centre by metro.
The flat was very clean and very spacious. It was well equipped too - we loved having a coffee machine and a piano! One more great thing about the flat was the balcony - it's very big and has some sofas so you can sit down and enjoy being outside.
We haven't met Ascan as he was away but his neighbour let us in and showed us the flat so check in and check out was very smooth too. Would definitely recommend staying in this flat!