 When I booked I asked specifically for a quiet room because I needed a good rest after 5 days of work in Amsterdam I was given a room at the first floor between the ice machine and the entrance of the Mariott on the street Those 5 nights were hell i could not sleep I told the friendly reception people and they told me I could have a better room higher in the floors but more expensive they just don t care the room was not fresh the cleaning approximative found a long dark hair in the bathroom For me it was a bad experience far too expensive for the quality offered but when you have so many non returning customers it does not matter 
No Positive