---
title: "Key takeaways | Grafana Labs"
description: "Summary of course learnings"
---

> For a curated documentation index, see [llms.txt](/llms.txt). For the complete documentation index, see [llms-full.txt](/llms-full.txt).

## Course summary

**What you learned:**

1. **Drilldown apps provide queryless exploration** for Prometheus-compatible metrics and Loki logs
2. **The exploration workflow is consistent:**
   
   - Navigate to data
   - Filter by labels and metadata
   - Visualize automatically
   - Add findings to dashboards
3. **Key capabilities of each tool:**
   
   - **Metrics Drilldown:** Browse time series, filter by labels, spot patterns
   - **Logs Drilldown:** Search text, filter by fields, identify errors
4. **When to use the Drilldown apps:**
   
   - Quick investigation during incidents
   - Learning unfamiliar systems
   - Ad-hoc analysis and verification
   - Self-service troubleshooting for the team

**The one thing to remember:**

> **Visual exploration removes query language barriers:** anyone can investigate infrastructure issues, not just query experts.

**What’s next:**

The Level 2 course covers Traces Drilldown and Profiles Drilldown for application-level observability, using the same exploration patterns.