Pros
The community at Forrester, and specifically the community of young professionals, is extremely strong. Co-workers are almost always willing to go out of their way to answer questions and help you solve a problem. The work that Forrester does is interesting. Being surrounded by some of the foremost subject matter experts in a given industry or on some technology is thrilling, if a bit intimidating at times. The opportunity to soak up information from those around you is nearly constant. People are passionate about what they do, and are usually happy to take time to share it with you.
Cons
The ability to seek growth, both professional and personal, is, at times, unclear. I find myself having to take initiative, and go beyond my stated day-to-day responsibilities, in order apply and grow the skills that will serve me throughout my career. I don't have much visibility into what those outside of my organization are doing (and if roles in these organizations would also be of interest to me). Most opportunities I've had to learn about the different aspects of Forrester have been self-discovered and ad hoc. Internal recruitment, and the drive to always have its employees maximizing the value they are delivering, needs more emphasis.