Qualitative Data Analysis – Nvivo

I am pursuing PhD in the field of Psychology. My Research area is anti-social personality disorder. I will obviously go for a qualitative analysis. Currently I have around 37 audio transcriptions of the interviews conducted. One of my seniors suggested that I use NVivo for data analysis. I have never used it before. Should I try using NVivo or should I perform the task manually? Will using a software make any difference? Suggestions please!!