This could be a great page builder. It is easy to use and the templates make it quick and easy to build a professional-looking page BUT there seem to be a lot of bugs. I have it on the latest core WP with a standard WP 2020 theme with no plugins other than contact form 7 and Wordfence but there are errors all over the place:
> page editor doesn't always show changes.
> navigation menu doesn't stick to the head of the page.
> changing the height of a slider block doesn't work.
> no way to change 'services' on footer block.
> some feature blocks don't show an image.

Hopefully these will get resolved quickly and I'll amend this review. But, at the moment, it is very frustrating to work with as simple things don't work.