In which circumstances would you primarily use the Scratch Org Wizard?

The Scratch Org Wizard is specifically designed to simplify the process of creating a new Scratch Org. When you're working with Salesforce DX, a Scratch Org is a temporary and disposable Salesforce environment that you can use for development, testing, and continuous integration. The Wizard provides a user-friendly interface that guides you through the setup process, allowing you to choose various configurations such as features, permissions, and settings for the Scratch Org you intend to create.

This tool streamlines the creation process and ensures that developers can quickly initialize their environments based on specific requirements, which is particularly useful when starting new development projects or during iterative development phases.

In contrast, other options refer to activities that don't align with the primary purpose of the Scratch Org Wizard. Building complex integrations typically involves more extensive setups and configurations than a single Scratch Org can offer. Debugging existing Scratch Orgs requires a different approach, often using command-line tools to access logs and diagnose issues. Reviewing metadata dependencies involves analyzing existing components and their interactions, which is also outside the scope of what the Scratch Org Wizard is meant for.