@Snowyowl78 in my experience it isn’t very consistent.
I’m a hs 12 on top, quite big busted with broad shoulders and a definite broad-hipped 14 for trousers/skirts. I always need a 14 in their skirts and I find their dresses quite long-waisted. I love their bombachos but they don’t love me - to long in the leg.
Their cotton blouses/shirts feel true to size, but the silk blouses tend to be neater. The knitwear is generously sized.
I tend to send quite a bit back due to sizing.