Flat was exactly what we needed. They were able to stow our bags when we arrived early. Excellent communication. Via WhatsApp. Stocked refrigerator with a bottle of wine and waters free of charge. Wonderful location near Karlsplatz and Stephensdom. If American, only minor note is that bedroom is upstairs (and warm during summer months) and WC and showers down. Didn’t bother us in the slightest. Highly recommend!