Do any of the crocodile owners have any feedback on how the leather is wearing? I just purchased one today (I went to Nordstrom to buy a Loulou and fell in love with the Niki instead), but now I'm worried about how the leather will hold up, especially given that I have three little kids and do not usually baby my bags. I'm wondering if I should exchange it for the regular black leather instead. But I really, really love the croc . . .