Pros
Good technical opportunity, there are some good employees there. There is a broad range of technologies to learn.
Cons
You really are just a number here. Upper management really only cares about utilization, above all else. So it really ends up quantity, not quality. They are also passive aggressive, and though it seems harsh to make the comparison, there are a lot of similarities to the movie Office Space. Employee morale seems low, it's not a fun environment to work in. It's actually quite stressful. I was going to compare it to prisoner's and prison guards, but it's probably more accurate to compare it to school teachers and students.