Pros
exposure to cutting edge technologies, fast paced. cool colleagues. usually learning something new. the office environment is great if you like being crammed into a tiny space with 100 people and no real "desk" .
Cons
horrible culture. horrible benefits. HR seems to be working against employees, no real care or concern for anyone other than partners. Senior management and project management is dysfunctional and a joke. no one seems to have a good handle on growth. they would rather hire than promote. high turnover of staff, constantly hearing of people trying / wanting to leave, very low moral. no career path. pay and bonus structure is a joke. Overall a loud obnoxious unprofessional environment.