I booked this hotel because it said it had a 24 hour reception as i knew I was arriving late. I called the hotel at 8pm just to be sure and a person that barely spoke English, French or German told me that the recption closed at 2200 CET. I managed to convince this person to deposit the key in an envelope and give me a code for the door. When I got there, the corridor was very messy and I found the letter in a pack of post.
The hotel is located in the middle of the pedastrian zone and even taxis can't get closer than 300m.