My verdict: a niche tool for Sales personalization.
Humanlinker is interesting for Sales teams doing ABM and wanting to structure their personalization approach. For Growth automation, it's not the right tool. Many features still feel "gimmicky" — worth watching to see if it matures.
What I like less: the "gimmicky" side of some features. Automation is limited, it's not made for volume. And pricing is high for uncertain ROI.
My advice: if you're Sales and do ABM with big deals, test Humanlinker to see if it improves your meeting preparation. If you're Growth and looking to scale, move along and focus on automation tools.