Pros
(Please note this review is specifically for for DRS except where noted. [Data and Research Services is a subsector of the knowledge team that was launched in 2012. Its members are billed as knowledge support experts in research rather than experts in any specific practice or topic area. I have worked on the founding branch of this team since its inception in Oct 2014.]) Company overall looks great on a resume, benefits are excellent, good work-life balance in DRS (e.g.: no taking work home, hours predictable and regular, etc.), work covers a wide range of diverse topics.
Cons
Day-to-day work is repetitive, boring, and essentially the same at Associate Researcher or Research level. (These two roles have a combined average tenure of ~5 years, meaning that someone who signs on with minimal experience is looking at 5 years of the same repetitive, boring work.) Environment is high pressure and extremely deadline driven, but returns on individual efforts are too low to motivate sustained exertion. Attrition is extremely high. While lip service is paid to career opportunities within the firm, these don't seem to actually be available. On-the-job skills learned in DRS are very specific to DRS and largely nontransferable. Base compensation is low compared to industry. Management team (with a handful of exceptions) is insufficiently trained and lacks management experience. A number of members of the management team perform consistently below the expected level of quality across dimensions.