I'm an international student. I was naive and got lured in by their promises of an eventual full time gig and H1B. They delivered on neither. The client was not interested in keeping me full time, they were just looking for someone to fill in while they had extra work. The agency couldn't apply for H1B because they're not paying me enough for the minimum threshold of H1B. They refused to help me a STEM extension. Yeah I know temp agencies generally can't do a STEM extension, but there are ways around it and this company refuses to help. At this point I'm sitting on my thumbs, applying for jobs, and hoping to get something within the next 2 weeks, but it seems unlikely and looks like my OPT will expire without any extension. Thanks a lot Fountain Group!
Even if you're not an international student, this company really doesn't pay you enough. They take off way too much from the original stipend. If you don't have a choice like I didn't, then go ahead, but try to switch to a different agency or get a full time job as quick as possible.