There are several functionalities like <br>1. Sending alerts to specific user according to alert and alert grouping. <br>2. Create alert groups according to the modules. <br>3. Making thresholds on the basis of rules/conditions.<br>4. You can define your custom set of rules for hitting the alerts. Review collected by and hosted on G2.com.

Few points that I don't like about sentry<br>1. In large applications that contains microservices and dependencies, some times struggle to scale effectively. <br>2. Managing and maintaining smart alerts can be overhead to the development process, requiring dedicated time and resources. Review collected by and hosted on G2.com.