I am around a size 14/16 and ordered the one size M through 2X in black and plum.  I am 5'7" tall and am very high waisted and busty.  The dress fits very nicely and is roomy.  The length is adequate...it falls about 2 inches above my ankle bone; however, if I were longer waisted it would probably hit me right at the ankle.  I really love the material.  Rayon is my favorite for summer and it is extremely lightweight.  I ordered the dresses on 05/01/2012 and received them on 05/14/2012.