A testimonial is like a good client...you acknowledge the professionalism delivered by your service provider and it reflects the high standards you apply in the service of your customers.
Richard Branson believes..."If you take care of your employees they will take care of your business"
If you can create a minute (max two) to express your satisfaction with the work I have delivered to you recently it may help other prospective clients...but rest assured that I will be representing you as well as myself in dealing with that client. Wearing that jersey makes it even more onerous