For me, the best feature is the log analysis with Azure Monitor's Log Analytics. Without being able to analyze the logs of all the activities that affect the performance of a machine, your monitoring effectiveness will be severely limited.
Azure Monitor provides scalable solutions from Microsoft, seamlessly integrating with its technology suite for effective monitoring. It features robust log analytics, custom queries, and reliable performance. The versatile alert system supports threshold-based notifications. While simplifying configuration, it should enhance integration with on-premises systems and other clouds. Improved automation and AI-based enhancements would aid troubleshooting. Enhancing cross-compatibility with third-party tools and cloud services would increase its flexibility for diverse tech environments.