I didn't get to meet Anne and Julian because they were out of town, but I had a great stay at their place. The location is excellent - close to lots of good restaurants and cafes as well as the Naschmarkt. Great neighborhood. Unfortunately, the nearby U-bahn station is out of service until January 2020, but it was still pretty easy to get around the city - just a bit more walking involved to get to the next station. The flat is nice (I especially loved eating breakfast on the tiny balcony), and the bedroom is small and no-frills, but perfectly suitable for my needs. There was a hiccup with the key pickup, but Anne and Julian were very responsive and everything worked out fine. Would definitely stay here again.