Pros
Nice coworkers, and sometimes the landfill next door doesn't smell so bad and you can walk around acres of barren parking lots. "Green" LEEDS-certified building (which is hilarious, considering the fact that you cannot reach Earth City by bus or bicycle, unless you desire a 2-hour commute and dangerous road conditions).
Cons
Nice coworkers are miserable, like everyone at Elsevier in St. Louis. Commiseration makes it worse. Environment is toxic. Anyone who says this is a great place to work is either lying, fooling himself, or sucking up for no good reason--promotions are rare and increased compensation is not part of that equation. Do great work? Rewarded with increasing demands to lower the quality of the content. Abusive and greedy company.