I ordered my reception dress on DHgate and so far it turned out to be quite a positive experience. I went with seller charm_baby. I was a little bit nervous because they don't have a fully positive feedback. I sent my questions to the seller before placing my order to make sure all my expectations from the dress are met. It was not even as much of telling them what to do, as to keep a written confirmation on what we agreed upon in case I needed to dispute.
My dress isn't perfect, but you shouldn't expect an exact replica of an original model. It's a knock off after all, and you don't pay a high price. Still I'm 95% satisfied. The seller was quick to communicate (considering 12 hour difference between the time zones), they made the dress within 3 weeks, and used DHL shipping instead of originally expected China Post, so it took only 3 days for shipping!
Some other DHgate sellers that have a positive feedback and are popular among BDW brides:
babyonline - http://www.dhgate.co...709bc04543.html
allanhu - http://www.dhgate.co...18cfbd0f97.html
weddingdress88 - http://www.dhgate.co...a16a0b5cac.html
I'm going to order my ceremony dress on DHgate too. I inquired Denia's Bridal (hua_yi_zhang) if they can make a custom dress that they don't list among their items. They seem to be an experienced seller with a good feedback. They will also send me the pictures of the dress before shipping it to me.
Originally I was going to order my dresses on OuterInner.com, but their shipping is expensive and the choice isn't as wide as on DHgate. And right now I don't regret using DHgate.