Right now, I find it tough to pay or even charge a client for the limited styling options available in this "Pro" widget.
Here's are some suggestions. Adding the ability to change the following would make this widget worth selling:
  1. Fonts (Font family, Color, Size)
  2. Box (Background color, Padding, Border radius)
  3. Review Stars (Color, Size)
  4. Review Text (Font family, Color, Size)
  5. Layout (Grid with column options; eg. 1 column, 2, column, 3 column, etc.)
  6. Number of default reviews to show, with load more option. (Forcing the scroll in a small window is a bit frustrating from a UI/UX perspective)
  7. Badge display options (Static or Floating)
  8. Ability to add Custom CSS
Currently, we utilize Elfsight (the above options are standard). I would love to replace Elfsight with Review Widget Pro but in it's current state it's just not possible.