Pros
They set a perfect example of how automated hiring and recruiting tactics drive away top talent and should be turned out to pasture. Oh, and I did get a little customer service position out of them, which I was promised would be a stepping stone to something better that they could find for me. Which they didn't. Glad I left when I did.
Cons
Everything else. It took like a month and hours on top of hours to go through a whole slew of ridiculous tests- all to get a job answering a phone! Also, they treat recruits really rudely, as if your time and efforts aren't worth anything. They don't communicate at all and leave you hanging about whether you have/have not been hired for weeks at a time. Since it is a staffing agency I am half-tempted to tell their clients as a courtesy that it is Adecco which is preventing them from getting good hires. This company is only worth bothering with if you are desperate for any job just to get you through.