I think one of the more interesting bits is how you integrate via a javascript snippet<p><a href="https://www.klaviyo.com/docs/javascript-api" rel="nofollow">https://www.klaviyo.com/docs/javascript-api</a><p>It seems like you could tag events quite easily on your site [customer logged in, customer performed action, etc] quite like mixpanel - and then use the rest of the system to perform actions in responses.<p>It would be super simple to set up a "Haven't seen you in a while" email without having to do any extra work. Lots of companies build nice products but don't put any effort on customer success, past conversion to sign up.<p>I like it. A non-technical could add a lot of value to an existing site.