I do not think anyone should go down there and fly FO. You will be an FO forever (they upgrade whom they want) .....and that will be the kids from Panama first. Also you will need to pay for your ACC certificates (something like $5K) the Capt's do not do this but COPA still finds a way to get you to pay "fees" for all kinds of BS.
I would suggest another route for any FO considering COPA. For Capt's.....its your option just go in with your eyes wide open.