I think it's such a cool name. It makes me think of a stylish, intelligent Jewish woman from North America. I picture someone who is confident and creative but also a humanitarian when I hear the name Shifra.
The first Shifra was the mother of the biblical Moses. Her original name was Yocheved, but was 'nick-named' Shifra since Shifra means 'beautiful' and, in her role as a midwife in Egypt, she used to beautify the babies after birth.