It has helped us to automate our workflows, and it's very simple to use as well! I wish there was more out of box integrations with other services like Hubspot or Salesforce for example.
Have you ever used an email service that wasn't in your domain? With this one we had trouble integrating into Gmail etc., but they are working hard at solving these issues now! We've been able to solve many problems by automating processes - from sending welcome emails when new signups arrive all through onboarding them for their first day, up until collecting data about customers' preferences so that future content can be personalized accordingly.