Since we're talking about sexual function, with me it was kind of funny. In my first couple of weeks, my sex-drive just died, and I really didn't miss it, but then within the last couple of weeks suddenly orgasms started getting WAY more powerful, and suddenly my sex-drive came rocketing back, just in a completely different way than it ever was before. Before HRT, having a sex-drive honestly always felt like an annoyance to me, because it felt like a need, something that I had to satisfy or else I felt like crap, and it really resulted in a kind of constant roller-coaster ride of highs and lows. Where now, for the first time in my life, I actually have a sex-drive that I like, and enjoy, because it's completely based around me wanting to feel good rather than having an actual need for it. So although HRT did kill my "old" sex-drive, it gave me a completely new one that I actually enjoy even more, because it actually feels "right," instead of feeling like a foreign invader that constantly controls me like testosterone-fueled desire always did.
Anyway, just throwing in my 2 cents on the topic.