Pros
Great place for work/life balance. Very strong in benefits, employee wellness, benefits. If you are at a senior (mid-level management and up) enough level the stock program can be good (although if not senior enough is largely non-existant), but all are eligible for a great ESPP. Cool that you can bring a dog to the office. The company is overall pretty solid, showing consistent, but relatively slow, growth. Lots of long-term employees (both + and - to this). Client base is also very solid investment management firms with most being long-term year over year customers. Basically the leading company in a fairly niche market. It's in San Francisco (limited number of non-media software companies). Lots of smart people, many of which really knew the details and nuances of the industry.
Cons
Career opportunities, promotions, and new opportunities can be VERY slow, especially if you have come from outside company (i.e., seems as if long-term employees have grown to expect this, and feel the stability and benefits). Also found the executive team at the top to be very political, the CIO rules the roost largely unchecked on most decisions and the ripples from that can go through the organization. The next level down management was hit or miss, but largely long-term employees that did an ok job, but lacking in real outside depth, perspective, or interest to develop it (a lot of "well this is how we've always done things, looked at it, etc......), including controlling the flow of information and really trusting employees. This isn't a plus/minus, but the cultural fit would largely be good with people that like collaborative, consensus building, people-focused versus ones that thrive on change, innovation, or rapid decision making and task-driven environments. Using big company, maybe an HP, not a Google or Cisco.