I have stayed 8-10 times at this hotel.... Never had a complaint. I normally stay here the night before a big presentation, since my office is 2 blocks away. Gold MR member.
This time I stayed at both ends of a business trip that had me flying out of MIA at 6AM and returning at 11PM.
The first stay, I had to contend with a musty-smelling room on the 6th floor, and, when changed to room 400...An amazingly loud neighbor made worse by the connecting door (not sure why I was put on a connecting room).
On the return, I made several phone calls to the front desk to request the shuttle... Encountered some attitude from the staff and had to wait 30 minutes for the shuttle to appear, while I saw the shuttle of EVERY single hotel in the vicinity of MIA come around 2-3 times.
Upon arrival, I got another musty-smelling room on the 6th floor, but I was too exhausted to say anything.
This is definitely an older building that's been renovated, but the rooms are showing their age... Not sure what is up with the smells on the 6th floor. Will try to find a new favorite place to stay around the office...sigh
Also... being a hotel airport, breakfast should start earlier...Starts at 7, by that time, many guests are long gone!

I stayed at the Courtyard Miami Coral Gables for two nights on business travel. The location was convenient for my purposes and you can walk to several restaurants and Miracle Mile. There is a shuttle that runs to and from the airport every hour. I also found the staff quite friendly and helpful. The breakfast buffet was pretty standard fare, but good for a quick bite. (Try to get a rate with breakfast included.) I did not use the outdoor pool or exercise room, so I can't speak to those. But, the patio area for the pool looked inviting.

The room was spacious, but I found the air stuffy and smelling of feet and chlorine. The bed was very basic, with seemingly old/worn linens. The room was clean and there was a full-sized ironing board, mini-fridge, and microwave. I'm sure I could have asked to switch rooms, but I thought it would get better if I opened a window and/or ran the AC for awhile. However, there was not much improvement in the air quality and I had already unpacked. The hotel staff was so helpful and accommodating, they probably would have moved me, but it just seemed like too much effort for such a short stay.

We stayed at this hotel overnight enroute to another city and were very impressed with the overall location which is very close to Publix and Dadeland Mall. This hotel is equipped with a mini fridge which is great to store soft drinks and yoghurts. The supermarket Publix offers breakfast and Cuban "cafe con leche" in the mornings and is a minute's walk across the street.One can also buy snacks from the snack bar located within the hotel. Our rates were very reasonable and we took advantage of the free shuttle which arrives on the hour every hour from morning until 10pm. Taxis from Miami airport to town can cost around $30-$40. So we saved $80/- by just using the hotel shuttle.This hotel is great value for the money.

Recently stayed at this Marriott and would definitely return. The staff was super nice and very accommodating. I needed to leave my vehicle there while attending an event for 2 days and they were extremely gracious and let me do this. I slept really well - bed was very comfortable. The room was on the 2nd floor room 230-something which I would recommend as these overlook the pool and are away from the street side. There was a refrigerator, mircowave and coffee maker in the room which was convenient. Breakfast was great and the staff were helpful on places to eat that were nearby. I would stay here again.