Main benefits I get are better sleep, which results in more energy throughout the day, and my joints don't hurt.
My strength has gone up some over the past year, can see how much as I started the log when I started TRT. I don't know what percentage over what I would have gained without TRT is, but I would say it's probably lower than what I would think. I also changed my diet a lot over the past year, eat a lot cleaner/healthier, cut out sodas/pops/cokes, might have 5-6 beers/year during softball season. Outside of that, if I drink, and that's rare, it's bourbon, and I stop after 2 drinks.
I'm 39, on the younger end of TRT, was 38 when I started it, and have never taken anything like that before. Only side effects I've noticed are my balls are smaller, lol. You could say some acne on my back, not much, and nowhere close to when I was a teenager, but my dad is 73, and still has some acne on his back, we have very oily skin, so not sure if that is a side effect or not. No anger/aggression or depression in any way, but do have more "stiffness" in an area