1. What does it mean?
혜자 praises a product or offer that feels unusually generous, plentiful, or worthwhile compared with its price. The expression is associated with the positive value image of products carrying actor Kim Hye-ja's name.
Also written or said as 혜자스럽다, hyeja
2. The nuance
It is a subjective compliment, not a price standard. Cheap alone is not always 혜자; the sense usually includes getting more quality, quantity, or benefit than expected.
3. Examples
“이 정도 구성이면 내 기준 혜자야.”
For this much in the package, it feels like great value to me.
“분량이 넉넉해서 혜자 도시락이라고 불렀어.”
The portions were generous, so we called it a great-value lunchbox.
Sources
References support the meaning and usage. Example sentences are written for NoCapWiki.