I assumed after my previous stay this would again be high quality and worth the very high nightly rate. Instead I arrived to a dirty toilet, and later found the beds to be full of dust and lots of small pieces of old tissue. I used bathroom towels to sleep on as the bedsheets were so dirty. There was also rubbish next to the bed, the dirtiest hotel I have experienced in Germany especially when you consider it is a 5 star. The reception staff were excellent and kindly offered me a complimentary breakfast, but the shock of housekeeping did not end that night. I had the red do not disturb sign on my door, but before 9AM the housekeeping Loudly barged into my room when I had wanted to catch up on my sleep in a luxury hotel. This was truly shocking behaviour at a 5 star. I have never been more disappointed with a hotel that was excellent last time, but the decline has been truly shocking with both cleanliness and behaviour by housekeeping that was completely unacceptable at any hotel, let alone a very expensive 5 star. So I can not recommend this hotel, after such a terrible and disappointing experience this time.