They arrived and I am pretty darn happy. The neckline is EXACTLY what I wanted - high enough to avoid the "bendover cleavage flash" but not unflatteringly so. I don't think I would wear it alone, because it doesn't give me the most flattering shape due to the built-in bra, but under anything it seems wonderful. The length is good on me, petite but long-waisted. The cotton is soft and comfy, and the bra is super-supportive without any lumps or bulges.
The only issues I see are 1) the seams of the bra show a little, in front, like they would if you wore a bra under a tight cami. Not a problem for wearing under other clothes, though; and 2) I'm going to order one size up and a cup size down for comfort - it is hard as heck to get on and I'm not able to fasten it behind my back after it's on me. So I just crushed myself into it pulling it over my head.. It was a squeeze but once on, it is perfect.
I ordered two weird sale colors, but now I'm going to order more basic ones!