Pros
Good pay if you negotiate well. There are plenty of opportunities to work on new things so in that regard it can be challenging. There is also a steep learning curve and a general lack of empathy if you don't meet that curve. There are plenty of co-workers to commiserate with about how agonizing it is to work here. So comradere is not hard to find once that common denominator is established. Navigant also throws some pretty lavish events a couple times a year.. Which are usually followed by lay offs..
Cons
Depending on the practice group, like financial services, it is expected that you work, eat, work, sleep and repeat. People work remotely on vacation.. Not because they want to but because there is pressure to. It is the company culture and it starts from the top. There are people in the company who have not seen their kids for weeks.. Literally. I saw the post about a great work/life balance and had to reply. That post is disingenuous and probably written by management. There are "fire drills" every day and most of them are false alarms. You cannot use the bathroom in peace because someone will come looking for you with a "fire drill". Don't even think about eating lunch out of the office... If you are a recent grad they will hire you and work the marrow out of your bones.. If you are a seasoned worker you will leave within a year..