No detailed, independently verifiable case studies with quantitative metrics (e.g., time-to-market reductions, defect rate changes, conversion impact) were found in the sources reviewed.
Homepage testimonials provide qualitative statements about increased development throughput and faster delivery, but:
- They lack baseline and measurement methodologies
- They are not independently audited or validated
Recommendation for procurement: request multiple reference calls and a written case study that includes baseline vs. post-adoption engineering metrics, component adoption metrics, maintenance cost impacts, and accessibility/localization QA results.