I like the landing page. The screenshots and videos make it quite clear what to expect. The pricing looks good and there's even a free tier. I am writing a similar (open-source) tool [1] and always looking for inspirations ;)
Edit: except export ;). Consider if you closed, your customers put effort into organizing with you.
$48/year for 3 boards? Maybe to typical HN readers, but if your selling point is "all the data you need", I can't think of any reason someone would pay $48 a year.