alt Hacker NewsThis is lovely and very slick, but you can get equivalent results for $0 with Blender and Export Paper Model.
That has the benefit of letting you create/edit/export the model in a single application instance in a single workflow that is easy with practice.
I will explore your suggestion, and I love Blender.
But that "easy with practice." does a lot of lifting here.
Though that practice-with-Blender then opens up so many possibilities in the 3D space it is ridiculous. Take the time to learn Blender people!