I'm building a Waterfall Enrichment for B2B contact info -> emails & mobile phones - any feedback?

Hi, I'm Benjamin, co-founder of FullEnrich, a tool for enriching B2B contact info (emails & mobile phone numbers) through CSV/Excel, API & Zapier. I'm interested in your feedback on the product.(https://fullenrich.com/) Which suppliers would you like to have as part of our enrichment cascade? Already +15 data vendors and debounce tools. You can create a free account and enjoy 50 free credits. Thanks a lot! Ben