Best transport to Greencourt from pudong airport for 4 adults

Do you refer to Green Court Serviced Apartment?
If yes, you can take subway line 2 at the airport, get off at People's Square Station, Exit 7. Then walk north 900 yards (800 meters) to arrive at the hotel. The ticket fare is CNY 7 per person.
Or you four can take a taxi from the airport directly. The cab fare is about CNY 180 in the day time.
You can choose the way you like.