Your team must perform a continuous architectural review of a mission-critical Azure workload across all five pillars of the Azure Well-Architected Framework (reliability, security, cost optimization, operational excellence, performance efficiency). Leadership wants pillar-aligned findings, prioritized recommendations, and an easy way to track improvements over time across multiple subscriptions with minimal setup. What should you recommend?

The Azure Well-Architected Review assessment, integrated with Azure Advisor, directly addresses all requirements. It provides pillar-aligned recommendations, generates a baseline score, and allows tracking of improvements over time across all five pillars (cost, performance, reliability, operational excellence, and security) for multiple subscriptions with minimal setup. Azure Monitor workbooks can visualize data but require manual inference for pillar alignment and don't offer direct recommendations or scoring. Microsoft Defender for Cloud focuses primarily on security and compliance, not all five pillars. Azure Cost Management + Billing is specific to cost and cannot represent other pillars comprehensively. Azure Policy enforces compliance but doesn't provide holistic architectural recommendations or tracking across all five pillars.