I went to an independent, who I know as a personal friend, and therefore trust as Iknow she is always immaculately turned out, whatever the circumstances.
We had to strip to our underwear, and were measured - not round but proportions, to tell what length etc of clothes. She also looked at our overall shape.
got told what shapes and cuts to wear, with outlines of cuts of trousers, skirts etc.
also tried on different necklines, again to see which best, and fiddled with them to see optimum place as well as shape.
we also answered lots of questions to help determine our personalities, which needed to be reflected in the style of clothes, so I for example needed to wear more pretty clothes, with frills and trims, but on classic cuts.
we also looked at scale, for size of jewellery, print, details on clolthing etc.
and yes, DH really thinks it wasworth it, I had money from family for my birthday which I spent on gthe style day, and some new clothes afterwards. As I said, I now can buy stuff from charity shops cos I know the cut is right.