Is it a good idea to order a quinceanera dress online?

Ok so i found a dress i really like for my quinceanera...but the problem is that i have to order it online. is it a bad or good idea to order it ..Please Help http://www.prettyquinceaneradress.com/dresses/Chic-ball-gown-sleeveless-Floor-length-hot-pink-Quinceanera-Gown-X2010119019/6231