La Mirada Post Office at 14901 Adelfa Drive, La Mirada, California.

Just wanted to post a review to counteract all the negatives-- I don't live in the area, but I had to drop off something at the post office that had to be mailed immediately. When I got there there was a bit of a line, and they only had one terminal. There was a kind employee patiently helping an old man figure out how to use the terminal, however. When she was done, she quickly processed all those paying with a credit or debit card to remove the hassle of waiting in line.

Overall, exceptional customer service from her!

(Went on a Saturday morning, around 9:45)