We have had problems with them marking items delivered that are not, but I know USPS has done this, and I expect UPS and FedEx have as well. It's not a big deal, especially since Amazon will send replacements without issue, but it is a little annoying. It is strange to receive mail from someone wearing a wife beater, and, in my experience, the drivers are much curter than USPS, UPS, or FedEx drivers, but I haven't come across anything that would cause me to file a complaint.