I have noticed that my sense of smell has changed somewhat. Though I have to attribute some of that to quitting smoking at the same time I started HRT. As long as the person wearing it doesn't bathe in it I'm generally not bothered by it. Sometimes I'll catch a whiff of something, like the aftershave my grandfather wore, and can have a positive feeling towards it but that's more of a nostalgia thing I guess.
Pretty much as long as the stuff isn't on me it's ok lol.