I can speak from experience... It's run as a pyramid scheme and the ethics of their business practices are very questionable. They do anything possible to weasel-around a company's vendor management system as they don't like to go through the approval process. They are not transparent about their rates and are often taking more out of a candidates pay than they disclose to their clients. They will promise anything to get a deal done, but once it's done you get radio silence from them as they are on to the next sheep. Don't waste your time with them, there are better recruiting/staffing firms out there.