Pros
The people really are great for the most part. It seems like people genuinely care about each other. If you can build a relationship with those above you, you can have an extremely rewarding work experience since you can often work with the same time repeatedly. I have had no problems working from home whenever I wanted or needed to. Vacation time is generous, and the benefits are good. they offer a lot of opportunities for education and conferences. There is a lot of community volunteering as well. There are ample opportunities for travel or international rotations if that is something you are interested in.
Cons
You need to be very proactive and seek out your own opportunities to be staffed on an engagement. You can't rely on being assigned to engagements by partners or directors. It's important to build a relationship from the ground up with at least a couple of directors and partners and prove yourself to them. There are so many extra things you have to keep up with - education, tracking your time, tracking your projected utilization/projects, updating your resume, etc etc that it sometimes feels you need an extra day a week just to devote to administrative tasks. The size of of the company and the amount of bureaucracy can be mind-boggling.