I think there is opportunity for advancement despite gender. However, I don't feel that there is a culture of mentorship. Competition is the norm and I think the agency could benefit from more collaboration.
A supportive work environment where women have a voice. The talent/HR department is full of caring people who work hard to look out for employees and provide them with nice perks, both big and small. I haven't used maternity leave but it is offered. I believe it is 12 weeks paid at 100% if you've been at the company more than 2 years. Between 1 and 2 years of service, I think it is full pay for 9 weeks and partial pay (50%) from 9-12 weeks.
Job Satisfaction Level
It depends on what her goals are. If she's looking to make it to the C-suite I wouldn't. Otherwise I would.