It is quite nice, but since there is no way to configure URLs, it‘s best used for greenfield projects, not moving from some other CMS with a differing URL structure.
No. For posts you can only configure whether .html is added.
No way to configure something like https://www.example.com/2024/02/post or anything. Posts always live at the very top of the URL hierarchy, and they always have exactly their title as the last part.