Thank you so much for the lovely comments, everyone. I'm really happy with the top, and recommend the pattern to anyone who's considering knitting it.
I made some minor mods. Being 5' 2" I shortened the length by a couple of inches, and after messing around with the neckline ultimately shortened it by two rows. I'd originally taken two inches off the length of the channel, but ended knitting it to the specified length. I also shortened the I-cord considerably. Looking at the photo there appears to be an extra row of eyelets, but the diagram shows only three rows so I stuck with the instructions.
I look forward to seeing a photo of your FO, astonh!