This is our local post office. The staff here are the absolute slowest post office staff I have ever seen - they walk, type and do everything slowly. It's a bit frustrating. There is usually 1-2 staff at the counter, sometimes 3. There is pretty much always a line out the door of people waiting to collect packages. I would avoid going to this post office if possible.
However, if you don't mind the wait, the building is worth seeing. It's very old, opened in the late 1800s I believe. There's a plaque in the entrance to the post shop with the date it first opened.