We were there for two nights before a cruise. The place reminded me of a tomato grown hydroponically perfect in shape and colour and size yet lacking something - maybe taste, a personal touch, something out of the ordinary. It's as if it has been designed and built on the results of a million customer surveys - Immaculately clean, lots of space and glass, spotless service, seeming perfection everywhere including the view out over the water. Our room was huge and lacked for nothing except perhaps a bit of character. And that's what the place lacks, some disarray, a sense of humour, some human warmth.
Once outside it's an area where it's difficult to walk about, just a sea of traffic and massive towers. However, they do have a free shuttle to South Beach and you can walk from there fairly easily to Miami Beach. A tip on the rooms. We were given one of the best rooms, 1901, with a floor to ceiling picture window view out over the bay but one of us has a severe height problem so we had to trade it for a lower floor.
Summary - a lovely hotel with lovely everything if synthetic excellence is what you seek. Maybe we just like boutique hotels with quirky staff and an interesting history.