Vantaggi
Their bi-weekly payroll always shows up, as scheduled and on time. You don't have to worry about whether or not you're getting paid.
Svantaggi
As is all too common in the industry, they're most interested in the "easy money" -- hiring on the folks that their clients request. If you're needing to get hired out from a resume, these guys don't want to work that hard. But, if you have the contacts to get yourself hired, they're not a bad outfit to worth through.