Pros
I've worked for IQPC for 5 years now, both in Europe and the US. My personal experience has been very positive, having had the opportunity to learn about and work across multiple industries, interact on a high level with senior executives and be a part of several fast growing business units. The environment in the New York office is entrepreneurial and fast paced, which could be very empowering for self-starter types, but could be challenging if you are not ambitious about your career, determined to achieve your goals or unwilling to put in the time to learn your craft and improve your skills. Overall, folks who are motivated, bright and open to learn do very well here, and end up launching great careers, earning very well and enjoying job satisfaction and personal growth.
Cons
A bit of a competitive landscape if you are interviewing for an SDR job - recent grads are welcomed but it's not always easy to receive a job offer. Important to have realistic expectations - earning potential is very high but will in large part depend directly on your performance and variable compensation. Having said that, the New York office produces some of the best-regarded products and events in the North American market, so if you do get the job and invest in your personal development you will have a supportive environment in which to learn your craft and excel.