It's a soul crushing slog to work here.
There is zero work life balance. You are expected to work insane long hours since the account folks will sell without regard for the impact on the people who do the actual work. It also doesn't help that the sales folks often have no clue about how to even get the work done. Expect very long work days and putting in hours over weekends. Don't be surprised if you are asked to participate in meetings while on vacation.
Oh, and the travel. They will put you on a plane at a moments notice and fly you anywhere. Hope you didn't have any plans this weekend!
The company has questionable ethics when it comes to who they represent. They represented Penn during the whole Sandusky thing. They helped with some BS climate-denier website on behalf of an oil company. You have to be willing to work for pretty much anyone as I can't see them turning down any client, no matter how sleazy.
As other people have noted, the place is very political, and we are not just talking normal office politics. Who you know really does matter to how far you can get here.