My sources say that the Pink Lady is a natural hybrid of Golden Delicious and Lady Williams apples, originally developed as part of a breeding program in western Australia and introduced to consumers in 1985. Write ups on Pink Lady apples tend to describe them as crisp, tart, and sweet. For my money, a good Fuji will be more crisp and any number of apples could be described as more tart (Granny Smith, Pippen, maybe even Braeburn).
That said, the flesh of this apple is atypically dense and it has an aromatic quality that borders on floral. I negatively associate this with the Delicious varietals. If you're into that kind of thing, then this may be a more interesting way to get your fix. The Pink blush and pale spots seen here are typical of the variety, and are generally attributed to cool evenings. Harvest dates are mid to late October.