Pros
Good benefits Fun working environment Ability to contribute quickly Ability to work towards changing your role in ways that you'd like Competent/intelligent coworkers Some ability to choose to work on the things you're interested in
Cons
It can get busy/overwhelming at times, although the open & supportive environment make it pretty easy to get help if you need it. Sometimes seems like the team workload balance is a bit off- some people are extremely busy while others don't have enough to do, and it isn't always obvious, and so isn't always addressed quickly. Most evaluation is subjective, and the objective measures used (hours logged) seem to be overvalued compared to what they really indicate. It's hard to know how well you're really doing compared to others in your role/tenure since no one (supposedly) knows what anyone else makes, and you don't really get told what affected your raise one year to the next.