I downloaded this app a few days ago since we are thinking about renting a car for our Fall trip. Being technically challenged we have a few questions. Would we need to do anything before we arrive in Aruba? I understand it works without Wi-Fi. Is it easy to use like reading a map? Are most things clearly marked? I think having it would give us the confidence to do day driving around the island. Night driving, especially after a few dinner drinks, would be left to a cab driver. I know I can get honest, respectable responses from all the great forum members here. Thanks all!