It shows you what it thinks it is and asks you to confirm that it's correct before it continues. So far, it's got all but one of my cheques correct. The only one it got wrong was one that was so badly written it couldn't decipher it at all. It'll still pay it in for you though and gives you a scanned copy as a receipt so you can check it went through and challenge the bank if it doesn't show up on your account the next day (these ones have to be checked manually at the end of the day by the bank, just like old-fashioned envelope ones).
Either way, it's quite a neat system and much better than the HSBC one the missus has used before.
EDITED: 25 Nov 2013 15:41 by DAVE!!