Seeing That Other Question Gave Me The Courage To Ask, I Would Really Like To Know The Effects And Also

Seeing that other question gave me the courage to ask, I would really like to know the effects and also how reversible that are.

These are the typical results of hormone replacement therapy which includes taking estrogen and anti-androgens (testosterone-blockers). 

NOTE: Remember that hormones affect each person differently and not all of these effects are guaranteed for everyone)

Breasts

semi-reversible: will shrink a little, surgery needed for full removal

Body hair

lessens and becomes thinner

fully-reversible

Facial hair

facial hair may become thinner/lighter but will not disappear completely without permanent hair removal 

fully-reversible (before permanent hair removal)

Skin

skin will become noticeably softer and thinner/delicate

bruising will likely occur more easily

fully-reversible

Fat redistribution

fat will redistribute from masculine areas (upper body, waist and stomach) to feminine areas (lower body, hips and butt)

fat redistribution will also occur in the face

fully-reversible

Muscle Mass

significant decrease in muscle mass and strength (especially in upper body)

fully-reversible

Genitals

testicles will shrink significantly

penis may shrink somewhat

production of testosterone and sperm will be greatly reduced

reduced sex-drive

reduced erections

reduced ejaculation (may stop completely)

probable infertility in the long term

semi-reversible: it is not known whether or not these effects are reversible or not. These effects are likely reversible in the short term, and likely not reversible in the long term

Body/other

decrease in oiliness of hair

possible minor feet/height shrinkage (rare)

change in body odor

Emotional changes

Most trans girls I have talked to have experienced an emotional shift when starting hormones. Having the correct hormone fueling our bodies results in a calmness/peace within ourselves both emotionally and hormonally that makes you feel much more at-ease in your own body. That is the best way I can describe it.