Yes indeedy it was me that ordered one of ebay and personally I wouldnt recommend it, I thought ut was worth a try but im glad i was prepared to have to buy a 'real' dress.
The dress was beautiful and if I hadnt tried on shop dresses I might have been hapy with it but it was no where near as quality as dress shop dresses and I just didnt feel special in it. I was lucky that the dress had a slight mark on it so i think I should get my money back but otherwise you wont get a refund if you dont like it. Things to consider are that the pictures on bay of e arethe designers pictures not the pictures of the dress you will get, you will get a copy thats done by them looking at the designer picture. The material they use is not the same material as in the shop and not the same quality, and the detailing isnt the same, the stitching is obvious and down to the little details like instead of swarorski (sp) diamonds/crystals they use sequins. So the dresses are quite different to the designer ones they are 'copying'.
Its a tough decision but if you are on a very tight budget and you werent going to try a dress shop dress on then it may be ok.
I hope that helps and doesnt confuse things too much! x