im 4 months into hrt so far, and my experience with my libido at first month was higher male libido (very obnoxious and dominating), and then declined and gone in the second month (and some of the 3rd month), and now is come back very different in the later half of the 3rd month.
My libido as it is now, is always around, but usually unobtrusive, and whenever it/she does pop up, it is very nuanced and enticing, like a meal with lots of different flavors and textures. I won't go into details, except to say that my body is definitely wired up much differently, and my new libido definitely leaves me either very very happy, or in even more needful-ness of wanting a companion, and sometimes even one after the other, and/or both at the same time.
still, i love that my libido hasn't completely died off (yet?), and now fits me better than ever.