Honest reaction after a week of use: Address quality is the strongest column in the file. Bought it while building a data science consulting firm prospecting workflow for United States. Decent value, would tighten one or two fields.
Honest reaction after a week of use: Bounce rate stayed under 4% on a 1,000-contact email send. Bought it for United States's data science consulting firm segment specifically. Saved us hours of manual cleanup.
Ran the CSV through our deduper first. Website URLs were populated for ~80% of rows, far better than the competition. Bought it to map data science consulting firm density across United States. One column I'd add next refresh: secondary email.