Fedora is a decent complementary unit but nothing people get excited about due to her skill and competition from Iris. To get noticed as a Gold unit it really helps to be guaranteed or have a nice drop rate or Awakening bonus. For example, Bernice is one of the first units Soranokiro listed because she has solid stats well-tailored to her role and because her 5% Defense bonus to Heavy Infantry ability makes her a decent second tank even if you do happen to get Gellius or Deine.