I mostly uses it when there's an address on screen (like in a text, email, etc.) that doesn't automatically link. I pop up Google, it scans the screen, sees the address, and gives me a maps link. Very handy. It's also useful for movies and people.
Mmm gotcha. Like I said I'm trying to get used to the whole now on tap feature. I know Google wants It to be a key feature of the OS...I'm just so used to hitting the Google search for widget or saying "OK Google " then just searching the term finding it, then clicking the link in the search and just going to the actual website.
I use it a lot for tracking packages when for whatever reason it isn't a link. For some reason there are vendors that just don't know to add links to their emails!