When should a reviewer highlight the strengths of a manuscript?

Highlighting the strengths of a manuscript is an important aspect of a review because it provides a balanced perspective on the work being evaluated. A reviewer should point out the strengths even when also highlighting weaknesses, as this helps to give constructive feedback. This approach not only acknowledges the positive aspects of the research but also encourages authors by recognizing their contributions and the value of their work, making the review process more effective and supportive. By noting both strengths and weaknesses, the reviewer contributes to a more comprehensive critique that can lead to improvements in the manuscript and a better understanding of its overall significance within the field.