Pros
Tremendous learning opportunity, after all P&G is best in class when it comes to marketing. You get to work with very smart people. For the most part people are very nice. Excellent to have P&G on your resume.
Cons
Extremely hard to get hired as external candidate: it's a long shot. Most people don't know that the vast majority of P&G employees are hired straight out of school and many stay for their entire career, changing assignments about every 2 years. Coming in from the outside is very challenging: P&G has a very unique culture and way of doing things that really isn't covered during onboarding because it's assumed that everyone knows what it is. Extremely demanding work requirements: regularly expected to work nights and weekends, usually 55+ hours per week. Little feedback. Everyone is Type A, not in a good way. Expectation is that you transition to a new role every 2 years, including being open to relocation.