As the reasons stated by Rousseau were both concise and candid, I am unable to add to that post. I will comment, though, as to Strategic Reflection's manner of payment.
I came aboard with SR shortly after it was formed a decade + ago, just down the road from me in Cincinnati. To date, I have completed approx. 550 shops for nine clients. As an independent contractor, I apply for the jobs that suit me and pass on those for which I have little to no desire. The office is the epitome of accessibility, employing a toll free number during business hours and I have never encountered a scheduler that was even a tad short of very accommodating. Judy, the head of editing, is, simply put, "top shelf." Which brings us to pay; it arrives and I either bank or spend it. Finally, as it applies to reports, I have never had a hitch and the guidelines have always been crystal clear. I am satisfied.