Let's you live out your Forest Gump dreams, huh?
Indeed.
Why I was just playing it yesterday, I spent 3 hours running through desolate fields, towns, and roads with nothing but my thoughts to keep me company (no other running simulator could ever get running as accurately as that). Then finally when I felt like giving up, I saw this zombie running towards me. I could not understand what was the point of this running zombie in the simulator. I started running away from it, but it kept running after me. Then after an hour of running through fields, forests, and towns, the same zombie was still running behind me. Right then I realized the simple brilliance behind the zombies that the developer intended, he used them to prevent me from giving up running.
So after 5 hours, there I was still running, and now there were more than ten zombies behind me encouraging me to run even more.
I have to repeat myself, no running simulator could ever be as good.