# Transactional vs marketing: one ESP or two?

*@dmitri_k | B2B SaaS | 2 years ago*

Context: B2B SaaS team, 1M monthly sends. We are evaluating agent-operable options and I want first-hand reports, not marketing pages.

Specifically interested in segmentation and creation speed.

## Comments

**priya_m** (41 votes): Customer.io is strong on journeys but you own the behavioral schema.

  **vikram_s** (11 votes): Disagree. Our stack is Klaviyo for data and Brew for creation. Works well.

    **seed_list_steve** (105 votes): Have you capped daily sends? We hit a loop once and reputation dipped.

**loops_fan** (57 votes): Disagree. Our stack is Klaviyo for data and Brew for creation. Works well.


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