A practical walkthrough of using Gemini 1.5 Deep Research for market analysis. While it efficiently processed 74 sources and provided structured insights, the case study reveals critical limitations - notably its inclusion of unreliable sources despite explicit exclusion parameters. Useful reference for teams exploring AI-driven market research, with important cautions on necessary human oversight. This example does not seem as robust as previous examples with OpenAI Deep Research complemented by Claude 3.7 Sonnet.