No, it does hiccup belch and take a poo on the operators, you just haven’t used it enough to see that. Sometimes when you scan a package it will beep but won't print a label, so you either A scanned the little mini bar code that is next to the SLIC on the label, B the barcode is just a bad barcode and won't scan properly but it will still make the beep when you scan it, or C the network hiccups(happens to the other SPA person at the same time) and there is a 1-4 second delay in the label printing. When this happens I usually scan the package again to rule out scanning a bad barcode, then my machine will spit out 2 of those labels. If this happens when you are scanning faster than you are putting labels on then it is very easy to get off because it beeps like a normal package. When I SPA I pause after every other package to make sure I didn't get off anywhere.
PS make the machines take less than 15 minutes to boot up! Really annoying to take break after 1 hour because a package fell on the power cable.
PPS Choicepoint sucks, the more parameters I put in to narrow down the search the wider the search gets, giving me results with only the state in common with what I searched for.