Admittedly, I'm the type of person who would have rather been born cisgender, personally. The only thing I would be scared is that I wouldn't be the same person. I mean, I like who I am, in general.
However, I think there is some good that comes about it. I feel a greater amount of empathy for people, and I'm certainly much less quick to judge because I know how it feels to be treated like you're less than human. I also know how awful it is to have a condition that's expensive to treat and requires a lot of jumping through hoops. If I was cis, I probably wouldn't have had such a deep understanding of why it's so important to fight discrimination and why it's important that everyone gets the ability to have medical treatment. Granted, being trans has also made me a bit cynical in some ways, but I like to think I'm usually better for it. But I can't deny that I've had a few moments where I kept thinking "At least you get to wake up every morning and see a body that matches your expectations, why are you whining about your problems?"
I also think that being trans has made me stronger as a person. Like many trans people, I was suicidal before my transition. I remember periods of time where I would lay down to go to bed and my mind would go over how many things in the house could be used to end my life. I had some really dark periods because I was so unhappy with my gender identity. But having gone past that and tackled those demons, it has made me much stronger. When something bad happens, I tend to deal with things better because I know that I've conquered much, much worse things.
I dunno, though. It's a hard question. I don't know how my life would have been if I wasn't trans. I could have had totally different experiences, so it's hard to say.