I finally figured out how to get presto to show me Puerto Rico. If I entered the 5 digit zip code, it brought up New Jersey instead.
00727, Caguas, PR
But if I put Puerto Rico, it would show me some stuff.
My comments are about safety. It depends if you are traveling to a major city or small town.
If you are going to a major city, you know there is probably something wrong with the job/location that keep local shoppers from doing the job. I was traveling through New Orleans and would up near a large homeless area and felt very uncomfortable.
Use Google Maps Street view to look at the area..
A gas station in a major city near where I live recently went to $100 on the job board before someone accepted it at an unknown fee. This is a location very convenient to any local shopper but the locals probably knew that someone had just been killed there the week before and it is densely crowded with people who are not getting gas or convenience store items on any regular day. Because Google Maps often erases many of the people that might be identifiable in their pictures, the street views don't always tell the whole story. I just looked up that station and it looks very peaceful and uncrowded on Google.