Pros
They start everyone at the same pay which is pretty competitive for what it is. The hours are really flexible, so if you have a day job you can make extra income working at night. They offer medical benefits to their part-time employees which is really great. You can often pick-up overtime hours there when they are running behind on a survey and need help completing it. They try to keep the enviornment pretty laid back even though there are strict "methodolgies" you must adhere to. People from all different backgrounds work there and many already have professional full time jobs.
Cons
Call centers are pretty boring in general but Arbitron has a strict policy have reading the script word for word. If you don't you could get fired, but they would give you warnings first. After a while of reading the same exact scripts over and over hundreds of times I felt like a robot. That's common in calls centers though. Of course there is also the pressure of meeting call quotas and getting hung up on often, but that's to be expected. It's not for everybody,