The cool bird design drew me in, but it was the magnetic closure that won my heart. I tend to be rough on my calendars, so knowing that this baby won't open (and get dog-eared and mangled) while bouncing around in my bag is a big plus. Also has a little pocket inside the back cover for tucking away receipts, business cards, etc that I pick up along the way. Great analog back-up to my iCal for keeping track of appointments.