Great hotel not a memorable experience
I am a frequent Marriott traveler, last two years I've been in Cosmo at Las Vegas, Courtyard close to magnificent mile and Miami Beach, this year I visited Orlando, Weston and New York with my whole family. I booked 3 rooms in this hotel and I got to say great view, great location but not a memorable experience, first a low water pressure in bathroom (31 floor), waiting 15 minutes every time to take the elevator, can't connect to internet (17 dollares daily), and the last day bellboy didnt show and we have to use staff elevator with 16 pieces ourselves. 
So I think, the attention is not the best thing in this hotel for the price you are paying, I am not sure I will stay in Marquis again