I purchased two ballgowns for an event, and was smart enough to do it at least two months ahead of time. I am a size 24, and both gowns fit me remarkably well (I was concerned about bustline, but it was pretty much spot on).
Each of the items made are custom ordered, but with you not physically there to be measured, they rely on your input to tailor the dress. Be as precise as possible in your measurements when you place the order.
The gowns were beautiful. Well made and with surprising quality. And the fact that you get to customize your dress colour is kind of perfect (usually two colour choices out of 40+).
My first gown was a periwinkle blue, with beading and a chiffon skirt. While it did come a bit long (I'm 5'8"), it was absolutely beautiful. And with heels, I managed to not trip over myself.
The second gown was black satin with lace buttons up the back to the base of the neck. Again, beautiful. Surprisingly heavy. Almost like a full wedding gown. The underneath had not one but two slips -- and a layer of tulle to give volume to the skirt. It needed to be adjusted at the tailors.
NOTE: One thing you will need to know is that you will likely get a duty fee on the dresses. So prepare yourself to fork out another $40 or so.
However, given the average cost of a well-made ballgown; and the super elegant custom feel of it -- you really are getting a bargain at $120-$150 a gown.
I could totally see someone ordering their wedding dress through this site; they're that well crafted.
Don't expect speedy delivery. Plan. Give yourself at least two months before you need it for whatever event.
It's the tradeoff of getting it done so cheaply.
I firmly recommend this store (with the above-listed warnings) to buy a beautiful gown just meant for you.