I saw this a couple years ago. It was great looking then. I finally got around to trying to model some "real" considerations today, and it's just an awesome experience to use/explore so far. Congrats on the success, and great work! (and next, checking out the podcast, and probably subscribing to the service)
Happy to hear it! Crazy to realize I've spent nearly half a decade now thinking every day about how to improve the UX for this. A few areas I really want to improve still, but it has come a long way.