Some will say that it was just a rover, a machine sent to retrieve and send data to Earth in sake of one day finding any sign of life sustainability.
Others will say that it's service will forever change the way that we view Mars forever.
Whichever person you may be, remember that space is difficult to explore, and with this rover, a 90 day mission stretched into a 15 year journey.
You were a good rover. Perhaps even the best of your time.
Opportunity - Resting in the darkness of 2019