Pros
Work-Life Balance is taken seriously and supported across the organization. People are encouraged to pursue their personal and professional goals almost equally. Paid time off is granted for some civic duties such as being a museum docent or election worker. Working from home and flexible scheduling make child care challenges easy to manage.
Cons
Low staff and management turnover limits promotion and growth opportunities. The company is growing strongly but in many diverse areas. If you're employed in a fairly stable work area it's difficult to find promotions in your area. This forces others to either develop new skills in unrelated areas to pursue advancement or stay put and hope for the best. Since many of the areas of MITRE are mutually exclusive, it can be hard to transfer into growth areas. For example, an expert in artifiicial intelligence would have difficulty becoming a network engineer.