Really really cool. Passed to my team for using it on our projects, although we might wait until js snippet is released. Right now it seems to use only iframes (correct me if I'm wrong?) and that may open a can of worms on most situations. Not sure why a lot of embeddable apps still use iframes as their first (and only?) option at launch.
I'm still supporting it and giving it ⭐⭐⭐⭐⭐ since this is a first launch and the app is well crafted, good concept and working well, but my suggestion to the team is to move on quickly about that, if you are aiming at professional use.
Congratulazioni!