I started experiencing changes the first week, and at 1 year I am still experiencing lots of changes. They've been drastic.
Week 1 My libido changed (got stronger actually) and noticed male scent more, and my emotional state changed. I got more tempermental and emotional. I was also more calm and at ease with myself.
At 1 month my sex drive completely changed. Erections didn't happen at will anymore. Breast growth started it's very early stages (noticed tiny traffic cone shaped things along with buds that were very painful to the touch). A slight change was going on in my face but I couldn't tell what. Also, my strength loss was VERY noticeable, however I didn't lose any muscle mass.
At 2 months my face rounded a tiny bit and my skin texture changed. My scalp hair grew quicker. My muscles were melting away. Finasteride was making me shed, though.
At 3 months my skin was getting a bit lighter in color. Breasts were becoming noticeable thru my shirt. My libido changed from visual stimulation to emotional stimulation.
At 4-6 months body hair was falling off my body. My face started changing a lil more rapidly. The jaw was becoming weaker in appearance. My skin was VERY dry during the winter. I got maamed for the first time in month 5. My boss started looking at me differently and giving me crap about EVERYTHING he wouldn't give others. One company meeting we had, before going in, I looked in the mirror and was pretty shocked by how feminine my face looked that day. He stared daggers at me the whole time and never acted the same towards me since. Shedding from Finasteride stopped.
At month 7 the changes were very obvious. I was a full A cup and it was getting difficult to tell if I was a boy or girl. People either refrained from gendering me until they got my name, or switched between calling me a he or a she. I went part time, outside of work I was female. I noticed, also, that I had shrank in size about 1.5 inches.
At month 8 it got to the point where people were seeing me as a girl more than a boy. New clients even referred to me as a girl until I told them my name. My boss fired me this month too. I went full time after being seen as a girl even though I had facial hair and was talking in what I thought was my male voice (I think the practice started setting in and my girl voice was harder to stop). I went full time at this point, except one time I went out with friends that didn't know... and the waitress was shocked when my friends were referring to me as a boy. It took some convincing to get her to see that I was "male". I told all of my friends after this point and NONE of them were shocked. When buying girl shoes I noticed that my feet shrank from a size 10.5 wide in girls to a size 8 wide. My scalp hair felt MUCH thicker.
At month 9- 11 my face feminized further. I could see the fat in my cheeks collecting and I started getting more comfy with seeing myself as a female. Also, my body hair was growing in A LOT slower. I'm currrently only needing to shave my legs and torso once a week when I needed to do it every day. Also, I grew into a small B cup bra. My muscles diminished to the point where I was okay wearing more revealing clothes on my upper body. My chest / shoulder region is now feminine in appearance. Around month 11 I needed to get new shoes because I no longer could fit into an 8 wide, I needed an 8. My roommate pointed out that I looked shorter (and he met me at around the 8 month mark, when I had already shrank 1.5 inches). We measured, and it turns out I lost an additional inch. I am now down to 5'3".
At month 12 (now) the changes seem to be slowing down like they were in months 4-6. My face is still shaping more and more each week. Otherwise my breast buds don't hurt anymore (although they have been off and on throughout the whole process after month 3 or so).
If you want to see visual effects, I have a video of my transition on YouTube. Just click the lil icon under my avatar and click on "My Transition" video