Pros
Staff are experts in their fields and the work environment is generally supportive (not overly hierarchical). The benefits are good, especially for retirement, and the company invests in the well-being of the workforce (stock ownership, new gym/cafeteria, health benefits). There is flexibility in working hours. If a (mid-to-senior) staff member moves out of town but desires to continue working for Westat remotely, they often are accommodating.
Cons
There can be limited communication regarding project assignment and roles, and it is unclear how much the company supports internal staff career advancement. Some supervisors are better managers than others. The location is far from the metro. Workload can fluctuate a lot. Vacation/holiday benefits are stingy, and there seems to be general dissatisfaction with salary levels.