Since the picture looked so nice I did not look at what others had written. But now I see that this brand has a collection of repeated missers. Firstly a part of the fabric missed the zipper and secondly the zipper does not end exactly in a pleat. Seen from the side and back it looks like there is some fabric pushing out. In a 2012 (!!! enough time till 2013 to review your product) I read about the difference in length front and back. Indeed mine has a wave also, be it like half an inch, not really  visible. Living outside the US I don't want the trouble of sending back, double custom taxes etc.
Just two stars and those are for the fabric itself and the beautiful color, mine is green. I will not buy from this seller anymore.
UPDATE March 8, 2014. My friend took the skirt to a seamstress she knew. The zip still does not fit nice in between the pleats, so I'll have to wear a long blouse to cover up my 'tail'.