Other Advantages of Flight Following...
If you have an emergency, you've got help right now. In the press of a button (rather than digging for a frequency), ATC can help run down your options - headings and distances to available airports, following you down, help on the way, etc.
Unlike the flight plans of old, if they've got radar contact, they know exactly where you are and can even help with things like new headings for weather avoidance.
Most importantly, you're already paying for the service - why not use it!
Terry, CFI
RV9A N323TP