Use Cases and Deployment Scope
I've been using Hunter Starter Plan for email verification, finding and saving new leads, cold email marketing campaigns for ~9 months. Their training, support, newsletters and YouTube channel are very helpful in learning how to use the full power of their services. I very much enjoy their system for making personalized, automated email campaigns as verified, effective and efficient as possible. I completely recommend their free service, but their Starter Plan is what I'm currently using and enjoy.
Alternatives Considered
ZoomInfo and LinkedIn Sales Navigator
Other Software Used
Microsoft 365 (formerly Office 365), ActiveCampaign, WordPress