Katrin's place is surprising. Only a few meters from the metro station, the downstairs door is scrawled with graffitti. Don't be put off. Climbing the stairs and entering the flat, you step back in time over a hundred years to 20 foot high ceilings with ornate moulding; a floor of huge golden floorboards; the room big enough for a yoga studio; and the kitchen with everything one needs. I didn't find the sound from the downstairs bar a problem, even on Saturday night with the window open.
The other surprise, is that you won't meet Katrin, as she is working out of town for the time being. You do meet Norbert, who is very congenial, full of information and a real pleasure to talk to about many things.
Oh, and it has possibly one of the best showers I've ever been in!