The objective of reviewing a test scenario/case should be to ensure that the following quality attributes are met by the test case.
1. Effectiveness
Am I clear of the purpose?
Are the test cases sufficient?
2. Efficiency
Do I know when and what to execute?
3. Consistency
How dependent is the outcome on the individual?
4. Granularity
How ‘fine’ is the test data?
How long is the test procedure?
5. Understandability
Is it easy enough to understand or do I need extensive hand-holding/training?
6. Modifiability
Can the document keep track with the changes in the product?
7. Automat-ability
Can I automate the test cases by merely using the document?
Is there information to help me maximize the test run?