Brought a fancy dress here for alterations. The bustle was added with tiny hook and eye closures that did not stand up to the weight of the fabric. I ended up just sewing it so that I wouldn't trip over the train all night.
I'm not a professional so I can't say what could have been done, or if there is a better way to add a bustle, all I know is that this did not hold up and was not worth the money I paid.