MadKudu + Zapier is an early stage marketing team's dream: personalized automation for your best leads. Couldn't recommend this more for teams looking to focus on their bets leads throughout the funnel.
Explaining how the fit score is defined would be great to educate free users on scoring, push them to ask themselves the right questions and raise progressively a stronger need.
I own Marketing Ops and Digital Marketing at Algolia and implemented MadKudu about 2 years ago (before it was cool ;)). We are using MadKudu to prioritize leads during the Marketing/Sales hand off process. We are also using it more and more to provide our users that "Michelin starred" level of engagement.
I've been using MadKudu for a few months now and the google sheets addition is super useful. it allows me to instantly check if the leads i'm getting are suitable for my company, thus I can make an instant evaluation of my campaigns and initiatives. really happy with the product.
Been using the Google Sheets add on for a month or so now - does exactly what is says on the box, and more :) Makes it super easy to see what leads you really want to contact, what leads you should start sending a drip campaign to, and even what leads you should never ever contact again. If you're looking for a lead scoring platform that has both a great service and a great team, MadKudu should be on the top of your list.
I work with the growth team at Drift running and optimizing paid ads. We use MadKudu to estimate the expected value per lead. We optimize towards this value, which helps us make sure we're driving quality traffic to the site.