I haven't seen an AMA with any Big 4 auditors out there, so I'm happy to answer questions. I have been an auditor for long enough to answer questions relating to salaries, hours, lifestyle, locations, work, day in the life, recruiting, interviews, and almost any other applicable topic with confidence.
Full disclosure, I just quit my job as an auditor in order to take a break, expand my resume, and focus full time on starting a career that really interests me. This was a risky decision, and I can speak to many of the logistics around separating from your current career, networking, etc.
Finally, I will attempt to answer any question regardless of its pertinence to Big 4, so ask away!