Not just to be contrary, but both VOR Holdings and Wasinc treated me well during two recent interviews. Now the
airlines I interviewed with had their issues (one of which, to be fair, was I didn't get either job
), but these agencies did their best.
Always read the proferred contract carefully. If possible, contact some of the company's pilots before / during the interview process. The posts above can be useful, but forum information should not be your sole source of data.