- Vendor-published case stories (examples)
- Vilgain
- Reported outcome: Vendor-reported substantial sales growth on Allegro over a short timeframe, scaling to thousands of units per month, with a reported moderate cost-to-revenue ratio.
- Critical evaluation
- These metrics are vendor-published; methodology, baseline definitions, and attribution (seasonality, pricing changes, inventory expansion, ad spend changes) are not disclosed publicly.
- Sestimi
- Reported outcome: Vendor-reported a large revenue increase in a short period, a very large number of automated decisions processed, and a significant reported reduction in Cost of Sales.
- Critical evaluation
- "Cost of Sales" is not defined publicly (e.g., does it include marketplace fees, fulfillment, ads?). Without definitions, comparison across sellers is limited.
- Lexibook/Pertina
- Reported outcome: Vendor-reported growth from zero to multi-million sales on Allegro within a short timeframe, a majority market share in their category, and a large share of promotion orders automated.
- Critical evaluation
- "Market share" methodology (category scope, timeframe, unit vs revenue) is not published.
- What’s missing for a rigorous ROI case
- Independent verification (e.g., third-party case studies)
- Clear before/after baselines
- Control groups (what would have happened without the tool)
- Disclosure of incremental costs (ads, discounts, staffing)
Vendor-published testimonials / outcomes (vendor-provided)
- Example testimonial (vendor site)
- A vendor-published quote attributes faster response to market changes and automated execution to the platform — testimonial attributed to Marcin Człowiek, CEO, Sestimi Sp. z o.o.
- Vendor case-story metrics (vendor-published)
- Vilgain: vendor-displayed outcomes describe substantial sales growth on Allegro over a short period, thousands of units per month, and an improved cost-to-revenue profile.
- Sestimi: vendor-displayed outcomes describe rapid revenue increases in a short window, a very large volume of automated decisions, and a notable reduction in Cost of Sales.
- Lexibook/Pertina: vendor-displayed outcomes describe multi-million sales on Allegro within a quarter, a dominant market share position in the vendor narrative, and a high proportion of automated promotion orders.
- Critical note: these are vendor-published metrics; methodology, definitions, and attribution are not disclosed.