According to Business Insider, knowing about wine is like knowing about people.
Sommelier Sara Lehman says a wine with 'personality' is one that has a quality that's more than expected.
It's determined by the techniques used to make the wine, and its overall finish.
Pairability is also a factor. Does it have enough acidity to age and pair well with seasonal foods?
If it doesn't really have a strong finish, it can fall flat. Those wines tend to be not as much fun to drink.