Find my iPhone is pretty much useless in cases of theft unless the thief is a real idiot. Someone broke into my office in the middle of the night earlier this year and stole my 2015 15" MacBook Pro. I had Find My Mac turned on of course, but it never got a location. Those features are really meant for when you accidentally leave your phone at Starbucks or a movie theater because it fell out of your pocket without you knowing. Or you can't remember if you left your MacBook at grandma's house or Uncle Charlie's house.