Pros
Being in the financial industry affords MFS the ability to offer top of the line health insurance and benefits. Bonus and salary numbers had previously lagged well behind the industry average but have recently been adjusted to market average levels. There are a lot of good people on the ground level. If you are on the right team, you will enjoy the good culture you've heard about.
Cons
Our upper management is dying to maintain the culture that MFS was previously heralded for, but their refusal to acknowledge the changes in the world and the workforce is only widening the gap between them and the people who are doing the real work. MFS is very slow to adopt new technologies and you will be limited by what is available to you. Out of an abundance of caution, your laptop will be loaded with software to make sure you don't do anything to endanger the company. It will make launching some applications take an excruciating amount of time. You won't have access to GitHub or other useful tools and forums.