I got my daughter a rMBP from Best Buy for Xmas. She is on the mainland and my wife is flying over on Xmas day and will carry it over and give it to her. I'm inclined to leave it all sealed but was thinking maybe I should open it up and make sure it works. If I did open it, is there any particular test to run to make sure it's fully functional? If there is something wrong with it I'm pretty sure she can exchange it at a BB on the mainland after Xmas.