Mean bosses, long long hours, no thank you givens, move tons of paper daily. Our PO sorts 10000 packages manually everyday. Grueling work with a bad work environment. The PO is filthy janitor only works 1 day a week. Garbage cans overflowing, no paper-towels in bathrooms - ever.
Hostile employees, hostile bosses and lord help you if you are ever late, you will be verbally attacked in front of everyone. The 1st ninety days you will be a slave - with no days off. Then they fire and start new hires again, run fast from the USPS.