I bought these in my usual size in the autumn harvest color.  They felt a tiny bit snug for a second but then I remembered that they're brand new leather boots and thus will stretch out with a couple wears.  I was worried that the midcalf height of the boot shaft would make my short legs look even shorter, but somehow they hit me in a way that makes my legs look longer.  My calves are 13.75" in circumference and I have room to tuck skinny jeans in.  If you have wide calves or wide feet, these probably won't work for you.  I'm in love with these boots and can't wait to wear the heck out of them.  These boots are very similar to FRYE's Jane Stitch boot, except they cost three times less and are more comfortable to wear.

UPDATE:  I've had these boots for two years now and they're still in incredible shape.  I have worn them regularly in snow, rain, and salt and even though I polish and clean maaaaybe twice a year, they have not cracked, split, or discolored.  Only thing that needs to be fixed is the leather covering the heel, which is starting to rip (my fault, as I'm not very careful).  I have walked miles at a time in these boots, have sprinted down the street in them to catch a train, have spilled lots of beer on them, etc. etc. etc. and they show no signs of slowing down.  These are without doubt the best pair of shoes I have ever owned.