Pros
The compressed work schedule means you get every other Friday off, you get plenty of sick leave and vacation time, you get federal holidays off, the agency has a great mission, the scientists at EPA are bright and passionate, and the health benefits are pretty great.
Cons
The administrator is a joke. Idiots work in the EPA press office. The management team add no value whatsoever to the agency. There is heavy bureaucracy and red tape everywhere. Change is slow. A lot of the workforce is "retired in place," meaning they checked out a long time ago and barely do any work. The workload is very heavy with recent budget cuts. No support from the adminstration or Congress. I'm in pesticides--so we have double or triple the workload of every other office. No money for travel, training, office supplies, or business cards. Hard work and talent is not rewarded or recognized in any meaningful way.