I resisted Uggs for a long time, but once you try them they are hard to take off.  I think the button makes them cuter than the regular, and this height is perfect for me.  I have some friends with the taller bailey buttons and they say they flop around too much.  These don't flop.  They do run very big.  I'm a true 7.5 and the 6 fits in these mini cuties.