Pros
Friendly talented people (on media teams), tons of opportunities for growth and professional development (if you assert yourself), good benefits and generous vacation time for veteran employees If you work at QS you have to be very mercenary about it. Chances are if you're new to the industry you will not be paid well initially, but view your whole QS tenure as a paid internship to build up the skills training and, more importantly, X years' experience in the industry to move on to something more lucrative. You have to be assertive and nag nag nag your way into extra trainings and access to platforms, though, or else you will get pigeonholed in your lane and become grist for the next round of layoffs. Additionally, it helps if you have an inside contact to steer you towards the right vertical, as salary bumps and promotions are tied highly to team revenue performance and certain verticals are in an apocalyptic death spiral.
Cons
Blatant almost comical favoritism between management and certain employees; painfully process oriented on highly informal if not outright broken processes (no waterfall charts, no Scrum, nothing); high turnover and consequent loss of huge data silos/institutional memory; little communication between account managers and media teams; most of the business is built around a business model that is being weened out of existence; mediocre pay and HR/recruiters who WILL lowball the young and naive