Hey Lysette, I am almost 54 now and I started when I was 51 (self med, please don't do this), 52 with legal hrt.
Yes the younger one is when starting, the better results. However there are tremendous changes taking place that are worth every penny. Sure you cannot expect DD size boobies, but you will be much happier in your skin.
Let me quickly brake down your post... (these are my experiences, yours and others might be different)
more feminine facial features - Yes over the course of a few years fat is redistributed in the face, skin is softer but facial hair stays. (laser and/or electrolysis is needed

)
softer/thinner skin - Absolutely and this happened quickly in my case, and also no more male body odor.
fat re-distribution to the hips/butt - Yes, but it doesn't start until after probably 2 years or so.
less body hair - Body hair will slow down in growth and hair will become more softer, feminine hair.
decrease in size of genitals - But first no more spontaneous erections, no more sperm production, and yes shrinkage of the "no longer needed" parts. Out of side out of mind. This happens in the first few months! One of the reasons a letter of referral from a therapist is needed.
some slight breast increase - Just like every cisgender woman, sizes are different. My girls are currently 9 centimeters as measured by my Endo. In my experience so far is that they first grew a little and then really started to form in shape. They appear smaller because we all have a larger ribcage then cisgender woman, so we need more tissue in order to have bigger boobies in appearance. Yet I am very happy with the way my girls are developing, real feminine looking boobies. I do have a picture to show the growth development, just ask.
Well and then there are probably a hundred more little things changing. Also inside things change as well. I feel more at ease and happier, I don't look out of the corner of my eyes to observe other people staring at me, my interest towards male partners has increased, I'm no longer horney as often, and when I am it's a total different kind of horney, difficult to explain. Lets not forget the emotional and mood changes.

Especially when my Endo was regulating/adjusting my hrt dose.
Yes, I am glad I did started hrt, and complete transitioning, not going back ever. Surgery is a wish, but not financially possible ant time soon.
