Pros
Analysts are truly some of the brightest and most affable people you will ever meet -- and they work very, very hard. The research they do is unbeatable. Inspiring things go on there.
Cons
Middle management is full of baby MBAs who were good (perhaps) at the last position they held. Their only concern is the frequency and effectiveness of their toadying to *their* manager. The company is growing fast, and tolerance for this monkey shines will choke it dry. Also, employees are often treated like vassals. The Kool-Aide is deep and dark. A single employee complained to HR about having to physically commute two days. HR did an "official investigation" - and *increased* the mandatory minimum to three - for an entire department, upending home an work life for dozens of good people.