I actually use the people edge and tasks edge. I have to apps edge set up with my most used apps but I don't seem to use it as much. Probably could rethink my home page and use the edge more. I don't use the other edge features, at least not yet.
I don't know if that helps or not. Maybe you won't use it at all. Some people find zero use for it. While I'm using it, I don't see it as a must have feature. I could do most of these things with a widget or shortcut. It's just another option.