Cool, glad I could help. You are just a shade taller than me and about 8kg lighter. Since we are similar-ish, I'll go into some detail about my progress.
My goals have been more about losing weight than gaining muscle, so my diet has been focused on that. Even with a calorie deficit I have been really, really happy with my progress in the routine. I've dropped about 30 pounds, improved muscle definition, and clearly look stronger. I get inappropriate comments from the women at work now.
I've moved through a lot of the progressions pretty fast. Starting out I could kind of do a pull up, and was pretty good with pushups (I could already do diamond pushups, fingertip pushups from other fitness cults). Now I can do 1 hand pushups (on fingertips! but don't do that, it is stupid), and 3 sets of 8 L sit Pullups. I can do a tuck lever for 10 seconds (holy crap that was hard when I started), and am working on getting a leg out. (Although I might slow down and just stay at my 10 second tuck for a while to give joints/connective tissue time to catch up). I can do 3 sets of 5 L Sit dips on rings (keeping elbows in). My L-sit on the floor is getting there (I can get both feet up for 28 seconds if I'm tucked). All of this progress is with a sub-optimal diet. In another 15 pounds or so (I'm guessing the number, because it's really "when the belly fat goes away a little more") I'm going to switch to a ~500 calorie surplus diet, instead of a ~300 calorie deficit diet. I expect the strength and muscle gains to accelerate when that happens. Since you are starting on the "I'm already skinny enough, I just want to bulk up and be stronger" side of things, you'll likely have better results. (And that's ignoring the thing where you are half my age and your body is raging testosterone)
My skill work is focused more on arm balances than handstands. I recently added Side Crane to my "Things I can do to show off at parties I'll never be invited to" list. That was huge for me. I've wanted to be able to do that for years. I wasn't even working on it purposefully, I was working on elbow levers and kept falling on my face. One of the face-smashings made me remember how I felt learning crane the first time, and as a lark I tried side crane again. Got it on the first try. Yay new strength and mobility!
Anyway. Glad I was helpful, I'm excited for you. You will be really happy with your choice. I think this program is more likely to set you up with good lifelong habits than the other thing you were considering. Internal motivation is amazing, and this program really helps you build it.