I must say, as a full time traveler, it is rare when a flat meets, let alone exceeds expectations. I can firmly say that this place is a real gem! The neighborhood is bustling and wonderfully positioned amongst parks, museums and restaurants, but the flat is high up and quiet as the balcony faces away from streets. Perfect for long term stays (I always do at least a month), and the apartment is well-equipped. Also, Martina is easy to communicate with and is very prompt to respond. I enjoyed everything about my time here, would stay again, and can definitely recommend!
One additional note, this is a very nice neighborhood, so it is great for solo, female travelers. I always felt safe, even at night.