Regarding PC access I based the wording off this
posting by CO Insider (edited):
Originally Posted by
CO Insider
Travel to/from the Caribbean (including Puerto Rico) is excluded from our Platinum/SkyTeam Elite Plus lounge access program. On the other hand, if you're confirmed in International Business Class traveling to/from Puerto Rico (even if it's a complimentary Elite upgrade), you will have access to the Presidents Club, but with no guests.
Customers traveling on Continental in International Business Class (including the Caribbean/Puerto Rico/Canada) are allowed access to our Presidents Clubs (but with no guests) anytime on the day of departure.
It also references the CO website at this
link which states:
Lounge Access: Platinum members enjoy complimentary access to SkyTeam lounges worldwide when traveling on or connecting to a SkyTeam operated international* flight. Present your same-day ticket for admission.
*Flights between the U.S. (including Hawaii) and the Caribbean do not apply for complimentary lounge access.