It was a good "training pandemic". Some countries did quite well (Taiwan, Japan, Vietnam, New Zealand, etc.) and some countries did poorly (the US, Brazil, parts of Europe). Overall, being able to develop and deploy a vaccine within a calendar year seems like a success. Though a lack of inexpensive, quick, home administered tests seems like kind of a failure - they exist, but they haven't been backed by governments to the point where they can be manufactured in large numbers.