Pros
Great work/life balance. I leave my work at the office, and I don't check my email till 9am in the office. This leaves me time to work on projects I really care about and to develop myself professionally... But unfortunately this professional development is of my own initiative and isn't really sponsored by Fiserv.
Cons
For the last year and a half I was the project manager of a technical project. I spend most of my day dealing with various disorganized and splintered stakeholders. The project requirements change on a weekly basis, and we've started over twice. It's not our devs fault, it's really just that there is no clear requirement of what we're supposed to build. Towards the end of last year we finally got everyone to sign off and started to move forward, but then last month they cancelled the project because it doesn't fit in the 2014 budget. I'm not too bothered though because, like most other employees, I don't care as long as I get a paycheck.