Pros
Working for the Postal Service is definately one of the best jobs for experiance, access to work, work/life balance and everything else. Everyone at USPS is nice and willing to help each other out. There are lots of layers of approvals and management to get things done; But, not anything out of the ordinary for any other gov agency.
Cons
Financial status of the postal service is tough on all employees. This is typical at any company this day and age. Employees are still treated well. However, raises this year are probably off the table. On top of that salary rates are behind the rest of the federal government. This is offset by better benefits overall which does cost $$. Yet many do not necessarily need all of those benefits, while others definiately do.