I'm finding this very similar to the Donna Karan dress in that you just have to mark everything carefully and have blind faith in the instructions. The only changes I have made so far are;
Neckline adjustment a la Jacqui
The pink lines below show the adjustment you need to make, basically move the large dot on the centre front line up towards the neckline.
Omitted the centre back zip
Unless you have an extremely stable knit or a very elaborate hairstyle, I can't see any reason to add a centre back zip, especially as the front is a low v neck so save yourself the trouble.
Still to do are the waist facing which I still haven't figured the point of yet, sleeves, hem and to tidy up the drape and close any remaining gaps there. But it is really looking like a dress now and I feel like I am on the home strait!