We are building a single-page website builder. I started it as a side project with my friend because we were passionate about building something like this for years. We have designed and launched our beta homepage 2 weeks ago to get early testers. The homepage is built with our builder without writing any code.
First, We already have some existing users for our premium and free templates. Our main feature will be our templates and blocks with the easy-to-use builder where users can customize/edit everything. Also, anyone can build a website from scratch using the builder. We have tried to give all the basic CSS features and some advanced CSS features in the builder. The main goal is to make it powerful yet easy to learn and use.
Second, As you mentioned Divi and Webflow. Our builder works more like Divi and other WordPress builders. but we also provide features like hosting the website, export the HTML/CSS/JS (like webflow).
We have built the product based on our experience with our existing users. Right now we are trying to gather feedback from experts and users from different platforms. So we can get new suggestions and improve our product.