If you have darker hair and lighter skin, IPL devices are fantastic for getting some permanent hair reduction relatively quickly! I use a Braun Silk Pro 5, and it stings like the snap of a rubber band, but everywhere from my neck down just grows WAY less hair than it used to now.
I used to epilate and still do for certain spots like my hands, but that pain is pretty rough. It's hard to beat the smooth results of epilating your legs though, that was fantastic.
I haven't been on HRT long enough to experience any changes in hair growth from that, sadly