CloudFiler review for ONE: AI, Pop Up, SMS Marketing

I was a bit skeptical about this service and did some test broadcasts to small groups with both the Shopify service and ONE. About 70% of those sent via Shopify's service didn't reach their targets whereas most of those sent via ONE did. I also had reason to use ONE's support via chat and they couldn't have been more helpful, polite and patient with me and my stupidity - excellent customer service.