Pros
Get paid weekly - and promptly. If I turned in my hours by Friday morning, I usually had my pay in my account by the following Tuesday morning - unless Monday was a holiday. Importantly, this company offers a wide variety of flexible opportunities for both long and short-term temporary assignments. Many of these assignments have the potential to turn into a permanent position at the client company, if you perform well and stay long enough to complete the contract. If you have no experience, such as a recent graduate - or if you're transitioning to a different position/skill set - then doing this kind of temp work can help you gain valuable, recent experience that you can list on your resume to help you locate a permanent position.
Cons
No paid holidays unless you have enough hours (which is hard to achieve), and their health plan is far too expensive for the very limited coverage it offers (you'll be better off with a subsidized ACA plan, which is what I had while at this company). This is standard, however, with most temp agencies... and frankly I think Manpower treats it's temp workers much better, both in pay and in respect, than many other agencies do. So it's