Did not work, frooze repeatedly during initial setup. Will uninstall and reinstall and try again, report back. Not good first impression. Also note that it requires google plus account to use, which is a minus for me.
I wanted to try it out on my phone but it won't install on phones that have root access. I think you should allow the user to make that decision.
To install on a rooted phone. Use Xposed framework module to hide root.
Now find your lost phone and track your family and friends by cell phone number