The included page builder is limited in what it offers - it will not recreate what the demo looks like. It is limited in what it offers and cannot recreate demo content.
The demo dummy content can be imported but it cannot be edited. It can only be deleted and then you have to start from scratch (which defeats the purpose of even having it). Many of the shortcodes are only obtainable if you send Support a question and even then, there's no guarantee they will provide you with what you want.
The look of the theme is great - but once you get it, you'll spend more money having to alter the site yourself to match what you want. NOT WORTH THE MONEY.
1) Sorry for the inconvenience happened to you. The page builder was a additional module added to our theme, months after the initial release of our real property theme and hence the dummy contents are not built with page builder module.
2) Still you can use the sample layouts module, which will build the home pages, about us page, etc as our demo in page builder. Please have a look.
Please consider revising the rating that you have made.