I was just looking for information on this. I'll be flying a fun route in March JAX-FLL (JetBlue), 10 hours bouncing around Miami before a TATL with TAP Portugal MIA-LIS-CPH in business class. I have Star Alliance gold, a business class ticket, plus Amex Platinum membership so have been trying to figure out which lounge I could get to except there are no lounges at all in the terminal from which TAP departs (terminal G). TAP lists their lounge as the Avianca lounge in terminal J which looking at the airport maps requires going through security clearance to go to the lounge... and then I guess again to get to terminal G? If I'm going to be faced with going through security twice, is the Avianca lounge worth it or should I go for the Centurion lounge?

Or, you know, just hang out in Miami all day and show up to my flight on time and not worry about lounge access for once in my life... ha. I'll be looking for a shower before the flight though so there is that to consider as well though.