The Arrabella Sheraton Frankfurt - horrible hotel for a luxury collection. I gave my feedback to them on the comment card... and about 2 weeks later, i received an email informing me that they will be renovatin the hotel by the end of the year.. Hopefully it will be more "luxury".

The other one is the Pullitzer hotel in Amsterdam - see my review on this forum... either renovate or drop from the "Luxury" collection.