The most valuable is the developer experience and the extensibility of the overall ecosystem.
GitHub Advanced Security prevents accidental exposure of sensitive information and provides a platform integrating security needs. It uses AI for accurate analysis, minimizing false positives, with no performance issues. Valued features include security and dependency scans. However, it lacks a centralized dashboard and simpler deployment. Improvement is needed in vulnerability categorization and DST features. Additionally, there's a delay in open-source vulnerability updates.