Count me as another...

Started HRT 3 days before my 33rd birthday. However, my first three months were pretty much worthless because the E dose was so low and spiro didn't make even the tiniest dent in my T levels, so I didn't begin functioning HRT until 3 months after my birthday. Even my doc tells me the results were so bad I shouldn't even count my first three months.

I'm now at 5.5 months and the results have been amazing, but mostly facial. Then again, I also started while 25 pounds underweight for my height (5'11", 120 pounds) and that could explain the lack of body work. Muscle definition, what little I had, has decreased and skin has softened.
The biggest changes I'm looking forward to but haven't happened yet are that my skin is as ridiculously oily as before, and I've had no thinning or lightening of body hair. I'm thankful that I wasn't hairy in the first place. I had like five hairs around my belly button that weren't even coarse, and none on my chest, shoulders, back, or upper arms (I didn't even have facial hair past the outside corners of my eyes, not even sideburns). Armpit hair seems to have had a slight loss of coarseness, but leg hair hasn't dissipated or thinned at all. My lower arms (and elbows) didn't have coarse hair and most of it was light blonde, but there's just
a lot of it. These light hairs are also on my hands and fingers and the pores around them are huge. Which is to say my lower arms and hands are VERY male and my least passable feature. I still have to shave them and my legs every other day. Hopefully all of this will change in the future.
Breast development...? Ugh. I don't know if it's weight or genetics, but after 5.5 months, I'm still only about halfway to an A cup. No clue where I'll wind up given that my mom is barely an A. But her mother and sisters all had/have D or higher and my sister is a C. I recently put on 25 pounds and the entirety of it went straight to my belly. Not so pleased about that one. I had been hoping for more even distribution or something to go to my breasts.

But still, I had an instance this week where I nearly couldn't buy something because the clerk flat out didn't believe that I was the person on my license. She argued that a) the person on my license was a boy, and b) he looked like he could be my brother, but definitely not me. I dropped into my boy voice out of desperation (even did my voice that sounds like The Who song "Boris the Spider") and she still argued with me for another five minutes that there was no way I was a guy. I pretty much left that store feeling like a million bucks.

So no, 33 is definitely not too late. Like others have commented, HRT can be as much about genetics as it is about age.