sentence - "In spite of" vs "other than."

I would like to know which sentence flows better. This one:

I was a taken aback by Limei's little confession. In spite of her
impulsive personality, she seemed like a normal girl, leading a normal
life. Could she be more exceptional than I thought?

or this one:

I was a taken aback by Limei's little confession. Other than her
impulsive personality, she seemed like a normal girl, leading a normal
life. Could she be more exceptional than I thought?

Suddenly, I'm unsure which one to use.

What I want it to say is that, except for her impulsiveness, Limei seems like a normal person.

Answer

Considering what you want to say, other than is perfect. You can also say, "Besides her impulsive personality.."

In spite of her impulsive personality means she hardly behaves as a normal girl, which has taken you aback. Whereas, Other than her impulsive personality means she is usually both impulsive and humble in her way of living.