Rubrics for writing courses have become increasingly popular yet there have been few studies published from the GCC. This study investigated the effectiveness of rubrics in business writing classes at a Kuwait university. The participants were 104 students who were given a survey that evaluated their opinions of the rubrics. In addition, several instructors from these writing courses were interviewed. It found that a robust rubric may help ensure that grading is consistent and fair, and that it was highly useful as a guide for students when writing the assignments, and assisted students in crafting the essay. A proportion of students suggested that additional feedback beyond the rubric was desirable. The writing instructors were generally supportive of the value of rubrics, especially as a means to indicate to students what is required in classroom assignments. Overall, this study contributes to the body of literature demonstrating the value of rubrics for writing classes.