I got curious. I haven't. Look at this in years, since I first got it on my iPhone 4, so over 2 1/2 years at least. It shows my phone outside, a half block away. That's not so good. I don't know what to tell you but I think I need to contact Apple. I wonder if this is another Apple Maps issue. Last time I used this app it was Google maps.
I refreshed the Find My IPhone map a few times and it brought it to outside my condo, about 100 ftor so off and out of the building.