UPDATE

I also ordered this one from Amazon in a size 4, it arrived today. It does zip up (easily), it is wayyy too long (which is expected-- I assume hemming even with petites) but it's also just too long/big everywhere! Would need to be taken up at the shoulder, taken in at the waist, taken in at the hips. And the cut out still wouldn't lay quite right, as it's a tad too wide in the shoulders. This dress would've fit better in a size 2!! (While still needing alterations at the shoulders and many inches off the hem).

I am surprised as I would think a 4 Reg would be a safe bet for someone who takes a 6-8P.

SO frustrating.

We'll see how the Macy's dress works out in regular sizing but now I'm really dubious.