I ordered a size up based on the reviews.  I probably didn't need to, since the material is pretty stretchy, but it fits either way.  It's a beautiful skirt that hits just below my knees (I'm 5'2), and has a great A line to it.  It looks just as full as the picture, and is so comfortable! It does have a stretch, so you can order up for maximum comfort, or order your size for a snugger fit.