I returned to the Marriott Biscayne for a second time despite my very negative review of my last stay here. In fact the Management picked up on my last review and offered me a comp if I would give them another try! So, I did. The problems with the internet had been happily resolved (no internet for four days had made my last business trip very difficult) and allowed the better aspects of this hotel to shine through. The hotel staff are cheerful and helpful and the concierge lounge does a very decent breakfast for free. This time my "concierge room" actually gave me access - which it hadn't the previous time.
The real reason though for staying here is the breathtaking views . If you have a reasonably high room you can just watch the light over the water change all day. I particularly recommend getting up early enough (at least once!) to watch the sun come up over South Beach.
I still have a few niggles. For a hotel in this price range, especially in a "Concierge" room, it seems odd to have no bath robes, no slippers, no shoe sponge, and no bottle of water on arrival. Corporate cost optimization on these small items seems silly. The bar is lively and does a good cocktail but the cooking in the restaurant is inexcusably poor and overpriced. The two restaurants in the adjoining mall that I tried - Primos and the Chinese restaurant are both excellent and cheaper!
Still, I will probably return for the cheerful welcome and the excellent views...