What hesitations did you have about working with me?
What did you like best about working with me?
How have you benefited from our work together?
Is there anything you would have liked to see done differently? If so, what?
What’s the most important thing people should know about working with me?
Is there anything else you’d like to add?
Do you mind if I publish some of your feedback on my testimonials page with a link to your website?