Never really had bad experiences here. Today I went with an envelope that already had a stamp but I wasn't sure if it's enough as I added something inside. There were 3 cashiers but still a lot of customers. And there was this guy that came from the back, maybe a manager or something like that and asked everyone if we needed any stamps or other simple assistance that wouldn't need the help of the cashiers. I totally like that and I was very thankful that I didn't have to wait in line just for a stamp. Thank you!