Erich patiently waited for me as I was late to arrive to let me into the apartment. He was very friendly. Apartment is very nice. Cosy, clean, modern. Fresh towels were provided. Close to the U2 and about 15 min walk (25 if you got lost like I did) to U1/U4 to get to Schwedenplatz to catch the bus to the airport. Close to shops and restaurants. Would highly recommend apartment if you want to stay in First District.