Testimonial post type allows you to make more than one "client satisfied words" or anything related. After making this post, call it with "Testimonial Block" in page builder and your testimonial post will appear as a slider.
Step by step :
1. Fill the title with a name. This title will show as a name in the testimonial page template.
2. Text editor is a content for the testimonial.
3. Featured image will display as testimonial author avatar.
4. And job form is from custom meta box. This form will display author job beside the author name.