If they have a real job you want with good pay, why not? The danger with such a company is that they may not have a lot of hospital clients, but rather clinics. As such, they may use your profile to market their agency to new hospitals that they don't have a contract with. This is not necessarily bad, especially if they pay you extra to be their first representative, but sometimes getting a new facility contract takes way too long for any traveler to wait. It is really good to know if that is the case. It once took me three weeks to find that out early in my career. I was interviewed, accepted, but never started because of the lack of the agency to facility underlying contract. Which no one told me.