I love working with Iterate because it eliminates the need for bulky 50 question user surveys, live in person focus groups (was lovely during covid when this couldn't happen at all), and sifting through Google Analytics data for 'trends' to answer questions.
We use Iterate because we're constantly testing new features on our site, landing pages with media spend, and messaging tactics. Iterate provides a single script to drop into your source code and then you can create custom branded surveys that keep the user on your site. We've been able to increase conversion rates, launch new products/services and get event/registration hesitation feedback in days/weeks instead of trying to decipher was directional data tells us.