Depending on the purpose of the piece, it make take different aspects to make it “good writing.” For a narrative, the story needs to have an interesting plot, where for a informative piece, it needs to be a strong source of information. No matter what the piece is, it needs to be worth the readers time to read. If it is intended to entertain, then it needs to entertain the reader; if it is intended to inform, then it needs to inform the reader.