We've been using Clay for 18+ months now, and it's completely changed the way we run our marketing agency. If you're a no/low-code marketer (or you want to become one), start using Clay.
We've been using Howitzer to promote our agency clients, generate revenue with our affiliate offers, and grow our community gatherings. The ability to create a list from a query and send personalized messages is nothing short of a superpower. We are head over heels in love with Howitzer and can't wait for them to grow their featureset even more.