Pros
Very competitive salary, excellent vacation policy and a robust benefits package. The people here are smart, bright and professional individuals (in my organization at least). A lot of tenured folks; some have been here for 20+, 30+ years, which has somewhat of a correlation to how much they enjoy their work. I have worked for a number of world-class companies, but by far, Liberty Mutual has been my favorite. My boss is great, I love my co-workers and the opportunities worldwide are endless.
Cons
Liberty Mutual has been in business for ages, and some of that conservative culture is apparent. Though recently, they have been pushing out initiatives to change that. Business suits are no longer mandatory in their Boston headquarters, paid maternal/paternal leave just got introduced, work from home schedules are being piloted and we now have casual Fridays. One area of improvement would be work/life balance for some departments. My observation is that some functions have a harder time managing their work or being able to take all the time off that Liberty offers. Like other conglomerates, changes take time here. There is a lot of red tape. If you are coming from a smaller firm or a start-up, the pace of change can frustrate you.