1. They constantly lies to their employees about the rates.
2. Not a guaranteed job. I am currently on full-time with Randsatd so they take a huge cut out of my rate for the client; which comes with the job guarantee that they will not terminate employee even the contract with the client ends. I specifically asked this question before accepting the offer and they told me an employee will remain on bench with pay regardless of your project status. That is the main reason i accepted the job. I knew they are doing 60/40 rate. There are tons of consulting companies who does not provide job guarantee but do 80/20 rate. Randstad lied about the job guarantee. After working with Randstad for 3.5 years, I received the termination letter within 2 weeks of project end. It broke my heart because i lost so much money trusting them and not going with other consulting companies. Luckily they found the project and so they cancelled the termination letter. After 3 months i resigned because i was unhappy with the whole termination thing then their ill-mannered recruiter called me and started yelling saying they have done so much charity on me. How can i leave them, they gave me good rates even though they are not getting that much from client. Now i don't know if she is an idiot or she thinks i am an idiot that i will buy her story that Randstad was not making money from me. That's just common sense. I also knew my client rate because my client mistakenly sent me an email which contained that so i told her that. She started accusing me of lying and not knowing anything about business and being a complete fool.
I worked with them almost 4 years and when client ended the project, they were about to terminate me but when i decide to move on, they started creating nuisance.
My advice is to stay away from them. Join some other company who give you better rate or job satisfaction.
3. Most of their clients uses old technologies and are small companies with no process, vision or even good product architecture.