I have done a decent amount of shops with them. My experience is this:
They don't have a ton of work in my area. They have some shops you do on the phone or internet so you don't have to go anywhere. The shops are first come first serve and the ratings are not used in my opinion. They respond at all different hours as they are international. I believe their offices and schedulers are in Europe. Sometimes they don't respond to your emails. The reports are fair and simple once you get used to their system. They pay on time as per their stated agreement through paypal and I have never had a late or missed payment.
Shopping Western NY, Northeast and Central PA, and parts of Ohio and West Virginia. Have car will travel anywhere if the monies right.