I haven't really noticed my own smell changing yet, (Probably not far enough into HRT yet,) but my reactions to other peoples' smells has certainly changed. Like before HRT I never even noticed my (female) roommate's body odor before, and thought that it was a bit pleasant on the few times that I did, but then one night a week or so ago when we were talking, and she hadn't taken a shower, suddenly I was completely taken aback by the smell. And likewise, when I'm dealing at my poker tables, I've noticed that I'm not as bothered by "man smell," while it used to be revolting.