I haven't had any comments about appearance yet, but my sister did imply that I was torturing my baby by having ultrasounds. [And no, this wasn't the result of in-depth research. This was due to one comment made by a radiology tech (when she took her husband for a cardiology test), based as near I can tell on one or two unknown studies the tech read.] I tried to reply in a very reasoned way, and she seemed to appreciate that I'd at least given the matter some serious thought.