I'll be staying one night (tomorrow) at the Hyatt Cologne, and I just called to reconfirm. I asked about a river / Dom view room and was told that as a Diamond, I was booked on the RC floor and that NONE of those rooms have river/Dom views. She did say, the RC had a Dom view, and if I wanted a room with that view, I would have to rebook a more expensive room & pay for that upgrade and would NOT be allowed access to the RC?? I explained that, as a Diamond, I was hoping for a room upgrade with a view and could I possibly have a room card allowing me access to the RC? She said, she had never heard of that being allowed? Any comments, or experience (I am not looking for a suite, and will only be there one night, with an early check out the next day ((Sunday)) and it appears there is still tons of availability.