Never again ,….
i came with my son at 31jul 2012 and stayed for 11days up to 11 aug at Double tree LEX &51st 
I made the mistake and i continued my holidays until 28aug 2012 .!!!
This hotel should not belong to HILTON ….
The first night the TV was not working and we couldn't see our account or any movie ,the phone was out of batteries and there is no fridge (that i asked ) even the bed had some sharp dangerous metal points around …
Most of the Front Desk staff was SO RUDE especially one young guy.
the housekeeper at 17th floor slammed the service door early in the morning (we were next to the service door) 
and talking extremely loudly and every morning going after us BEGGING FOR TIPS .
On 18aug that we went back from our cruise we made the same mistake to stay again because we had already payed the new room that was STACKED ON THE BRICK WALL…
Because they wanted to punish me for coming every year for one month since 2008!!!!!!
Our experience at the double tree was bad ( except the staff at MET GRIL the was awesome )
SORRY we do not recommend it .