My Parents just returned from Hawk's cay at the begining of Jan and they loved it..
it was a bit breezy but they had so much fun - my dad's company was there for meetings and they could bring their spouses. the rooms were well kept and the grounds well tended and they rented bikes and drove down to the end of the keys.. I know nothing of Key Largo
Hope this helps .. if you have any other questions i can pick her brain for you.. Michelle