The good news? Let's see:
-Passing. If you're cis, you never worry about passing, and you never get to go through that initial excitement of "HOLY FLYING PURPLE BANANAS THAT GUY CALLED ME SIR!", or the nice glow of confidence you get when you grow a bit more used to those moments.
-Picking your own name if you change yours. C'mon, that's pretty cool. You now have a legitimate reason to choose your own moniker that actually fits you.
-Support. Good news, you aren't alone out there in the big bad world! There are support groups in person, and communities like oh, I don't know...this brilliant, bustling one called Susan's. It's such an inspirational place

-Educating yourself. Maybe it was an early manifestation of being trans, but in my younger years I was highly cissexist and thought the idea of people not being the gender that fit their body was terrible. I was even upset by androgynous people! So hey, maybe it was karma, or life trying to teach me a lesson in acceptance. But I'm really glad for that aspect of it.
-The community, in general. There are some amazing people here and in other places- while I don't like being defined by how I wasn't born, being a part of the same community and having it in common with others makes me proud in a way.
-Ego boost. I've found that coming out has made me so much happier and taken a lot of weight off my shoulders, though being pre-everything means I've only now gone into the woods. To be bold and correct people on my name and pronouns starts an upward cycle in my self-confidence, lots of times I feel ready to take on the world to fight for equality and understanding for myself and my trans brothers and sisters.
-Being yourself! I haven't had the chance to watch myself transform (lol,
transform

) over time yet, but I will in a matter of years and hopefully the world won't end by then because it's going to be one of the most exciting things ever. I'll probably be so impatient with it at first but even now every little thing that brings out the boy looking back at me in the mirror is a victory over being born in the wrong model of body.
Really, there's so many things cispeople take for granted about just living life without fear of being misgendered and clocked, or the stress of not being accepted as the gender you are instead of what some scrap of paper says you should be, or your body fighting against who you are. I've learned a great deal from it so far, and I've only just begun my own journey.