Firstly - congrats and big up for creating UTeach. It's got great bones and is very promising. The business part is good, you can show parts of the course for free - that is good.

I've spent many hours and created a course and an entire landing page (link below).

The Landing Page editor is limited. I find it impossible to precisely place elements, size the page properly (I can't get rid of the side scrolls). When you change a template - your previous design is deleted, for ever. It cannot be saved. In WordPress, you can switch templates (themes) and then come back to a previous one, no issues, it's going to load as you left it.

The Course UX is decent, but not sleek enough as SamCart. For UTeach to compete in the "Big League" it must bring a shiny, fantastic looking product.

The Course Editor is decent, but could improve on UX, instead of selecting a post "type" there should be a large window open (not a crack like now, so hard to edit ) and allow me to design my course with blocks/elements. I cannot change the main page of the course, either, I cannot override the default... so impossible to customize, move around the elemtns, etc.

You can see what Iv'e accomplished so far here. -

https://healingmarket.uteach.io/
and
https://healingmarket.uteach.io/courses/get-strong