ETAs may outperform RSAs in specific situations:
- Tight Brand Messaging: When consistent messaging is critical, manual control in ETAs can be advantageous.
- Niche Campaigns: ETAs work well for highly targeted campaigns with minimal need for variation.
- High-Converting Formats: Legacy ETAs with proven track records may still deliver better results than new RSAs.
However, RSAs generally outperform ETAs due to their flexibility and machine learning capabilities.
