Its not anything most people use. I have never needed it, If your at the place then your own eyes and not a 3 year old picture will tell you more.
It's not like I'm using it to get an address then firing up Streetview cuz olol, it's like I'm looking into the future. I'm using it to get a better idea of exactly where I'm headed down to the tiniest detail.
Knowing you're going to a house at 384 E. Westmore street is one thing. Being able to get a ground view of the house itself and the lay of the neighborhood before you head there is so much more convenient.