I'm on "low dose" HRT - effectively what would typically be called half dosage for those who are intending to transition.
I was on estradiol valerate only for 6 weeks, then added in spiro since. Total time on HRT about 5 months, I'm somewhere between 35-40 years of age.
Skin changes - yes. Dry skin on face now, used to have combination skin - moisturiser is now essential.
Face changes - some softening of facial features. People are saying I look young for my age (especially after they find out how long I've been in my job).
Body hair - grows a little more slowly after epilation. I still have a few stragglers on the face which I didn't get round to zapping with electro and those have really slowed down in growth rate.
Emotionally - dysphoria reduced to manageable levels - it's no longer at the forefront of things. Libido has reduced. I feel more emotive now, but not quite at the stage where I would say I can cry at the drop of a hat, but I can say I can get close.

Some fat redistribution - it's moving downwards - I've had some weight gain this month (not enough exercise, too much food) but instead of the waist getting tighter, it's further down.
Breast growth - early tanner stage 2, some knotting, very very tender. Eensy weensy nipples, aereoles slightly larger, and I can notice some slight jiggling there when I run/jump. Keeping the weight down and HRT dosage low is probably a good way to minimise growth if that's an area of concern. Note that that may not prevent changes to the nipples/aereoles.
Voice doesn't change with HRT for MTF.
My endo says there are no hard/fast rules regarding low dose HRT for managing GID for non-transitioners - it's really a case of playing around with dosages till you and your endo find something that:
a) is safe
b) gives you a sense of well being
c) only causes desirable changes
Remember that the main irreversible changes are:
1. Breast growth
2. Areola/nipple enlargement
3. Sterility
If any of the above are unacceptable, then low dose HRT may not be for you.