I have an earlier version of the Keen Presidio that's a couple years old now.  I absolutely love them!  The exterior leather has held up very well and actually looks better with age.  There are some wrinkles over the toe area but no other scratches or mars (mostly thanks to the rugged toe bumper).  The interior leather lining is very comfortable and breathable; there's no odor at all.  It's difficult for me to find comfortable casual shoes because I have a very high instep and also need a roomy toe box, but Keen is great for both these issues.  After a few weeks of wear these shoes literally fit like a glove.  I can spend all day in these shoes and have no foot pain or fatigue by the end of the day because they provide just the right amount of cushioning and arch support.  These shoes are built to last.  They fit true to size.