During a business trip, I got the opportunity to stay one night at Hotel Residenz and it was a truly great experience! The hotel is located right on the bank of Danube a two minute walk from the Rathaus (center of the old town), which provides simple access to the city. Check-in was smooth and fast. Good. My room offered a spendid view over the Danube and the castle overlooking Passau. Excellent! The bed was comfortable and the bathroom and shower was very fresh and seemed to have been renovated very recently. Great! The staff was both very helpful and fun to talk to. Great! One slightly negative aspect was parking. The entrance to the parking garage was a bit narrow, why I was glad that my rental car was really small. A large car (like a SUV) would have been much more difficult to get into the garage. Can be improved. Breakfast was good (a varied buffet) and service was fast. Good. Check-out was also very smooth and fast and as I left I received a bottle of water with handwritten greetings from the staff, with felt personal and genuine. Surprising and a great end to my stay! I would recommend this hotel to anyone going to Passau.