I use the G+ version too and the downside to it is that it only has one use case which is "always allow people I authorize to see my location" and the only way

I use the G+ version too and the downside to it is that it only has one use case which is "always allow people I authorize to see my location" and the only way to hide yourself is to remove permissions which is apparent to the person seeking your location. I've never had/wanted to hide my location from someone I've permitted to see it but I can see there being a use-case for it. The Trusted Contacts app allows you to grant people permission to ask for your location or for you to push those people your location if you feel the need. If someone asks your location who is permitted, it prompts you to approve or deny the location request and then times-out and grants it after a few minutes. The whole ask for permission to ask for your location seems awkward at best. This grant/timeout thing completely defeats the reason why my wife and I use the G+ location sharing which is to avoid the "where are you? when will you be home?" interaction.