The really annoying part is that some terminals beep when the card read is done, while others beep at the start of the read, meaning if you are primed for the first type, you will prematurely take your card away and cause an error, requiring a second attempt.

This gets me every time

I actually find the "Square" based nfc readers to be the best. There's no real feedback because it's just a tiny, watch sized brick that you pass your card anywhere in the vicinity of and it reads it so fast you basically can't screw it up.