Pros
Started with USPS in Woodland Hills California during a layoff from Lockheed in Burbank in 1984. Even being a new hire the office was booming with new routes and carriers retiring very often so it was easy to move up from a PTF to full in about 5 months.
Cons
So much mail and political mail since Woodland hills has many people who make lots and lots of expendable money and just buy and donate so much they are on every mailing list in the world. Mostly Hidden Hills got so much mail it was sick. I was slow in casing mail and might have been on border of 18/8. I put in so many 3996 that I had a sheet of them in my case. One time I screwed up and while doing a route as a T-6 i forwarded the entire bottom row of the case. And of course on one route i mis-delivered the first 6 houses on a block that had door mail slots and same address as the next block when I grabbed the wrong bundle of letters for the next block ... oh well .. Cons I guess was distance from my home and requirement of mandatory overtime.