I booked in here rather than pay $350 a night at the Westin Diplomat (and $28 extra for breakfast before any beverage!) where I was attending a conference. Did not regret this one bit. Easy to get to the area from Miami Airport (take the Tri-Rail to Hollywood Station - there's a cab rank there) although the last leg proved problematic (download a map from Google and show it to your driver because he almost certainly won't know where to go - some of the worst cabbies on earth round here). Great spacious rooms (both bedroom and sitting room), ceiling fans and efficient aircon in the bedroom, a full kitchen and right by the beach. At night the neighbourhood is quiet and safe. What more do you need? Well, there's a barbecue in the garden.
My only warning (not a complaint because it's not their fault) is that it's about 20 minutes walk in any direction to the nearest bar/restaurant/shops etc. But if you've got a car that shouldn't be a problem. And if you've got one of those then Miami Beach and Ft Lauderdale are also within easy reach.
On the short list for my next holiday in Florida.