I find their sizing fine but the shoulders too wide for me. I'm narrow shouldered, but these seem broader than standard patterns.
Well they sometimes come out small on me so although I am a bit broad shouldered, I wouldn't think they're bigger than standard!
The main thing to remember is they have small seam allowances, so there's not much room for wiggle if you get your size wrong. I think their size charts are to be trusted too.
They are very nicely drafted, have loads of styles that are brilliant for colour blocking and using up scraps.
My second favourite, very close after Vogue