I have stayed at many Marriotts around the world. When checking in at the Beaux Arts, you are sent from the standard front desk for the JW to the upper floors and the personal concierge and check in. You are invited to have a seat and offered a drink while the process begins. Instead of just handing over the keys with a room number, you are escorted to your room for a tour and lesson on how the modern conveniences work. From the B&O electronics to the waterfall touch faucets in the dual sinks, this room is top shelf.
The staff is very helpful and literally at your beck and call. Ask and you will receive.
I am not the high roller that you see plenty of in Miami, but this boutique hotel from Marriott made me feel that way. I would certainly stay here again!
You can see from the attached photo, the view was also spectacular.