Pros
They'll help get you a job.
Cons
They will also help you lose your job. Here's what happened: my background isn't clean due to ending up on the wrong side of the law roughly ten years ago. I applied at a company through Aerotek and during the application and interview process I was upfront about my history. Despite that, they gave me the thumbs up and sent me on my way to the new employer. A month into my new job, all is going well, I like the place, and my new bosses like me enough to offer me a direct position with the company, which I accept. The company goes through the process of doing a drug screening and also performs a background check of their own, and... well, I end up getting a phone call the following week from Aerotek saying that I "don't meet the requirements of the employer" and that my employment is being terminated immediately. Really? It's Aerotek's job to know what the requirements of their clients are, and their responsibility be upfront with applicants that have imperfect records if a client may terminate their employment on that basis. I'm not able to go back to my last job, and now I'm left unemployed due to their incompetence. Tried e-mailing them to discuss the situation but they're choosing to ghost me like some angry teenager. Very classy company. Thanks Aerotek!