Sentence examples for good or bad from inspiring English sources

The phrase "good or bad" is correct and usable in written English.
It is often used to refer to a comparison between two options or choices. Example: "I am trying to decide whether to buy a new car or keep my old one. Can you give me your opinion on the pros and cons of each, so I can make an informed decision? Ultimately, I want to make sure I am making a good or bad investment."