Depends if they see you as someone who has potential to join them later on as a grad. At least with some of the big retail banks, this is a huge plus because if you move into an accounting, finance or marketing role, you have a much better understanding of where the bank's core deposits come from and the importance of products which people want. Throw in a bit of customer satisfaction metrics and you have yourself a graduate who has a better idea of what's going on than.