Android smartphone users like to get notifications from their smartphone in multiple places so they can always be aware of emails, texts, and other important information.
Notifications can also be synced between PCs and Windows 10 mobile smartphones.
One caveat is that the feature isn't available on the standard build 1511 for Windows 10, you have to be running Windows 10 14342 to try the feature along with the latest version of Cortana on the Android device.
Once you have all the pieces ready to go, you have to enable the feature and configure it in Cortana for Android settings inside the app.
One downside is that there are no action buttons on the notifications on the Windows PC.
Even if you have to dig your phone out of a purse or pocket to reply, it's still nice to know if the notification is something important that needs a response before you dig the smartphone out.