Pros
Smart people, innovative policies and processes, always something new on the horizon. It's a winning team. You get to mix it up with many different types of roles (developers collaborating with marketers collaborating with services folks, collaborating with sales reps). Very strong brand in our industry. Feels like we're the Apple of marketing software industry.
Cons
Everything is fast. Shifting, changing. Growing team means growing complexity. Things slow down, things get lost in translation, departments inadvertantly working at cross ends. Don't get me wrong, nobody like it when they happens and people always are trying to work things out and work together. Alignment is a regular vocab word around here. The micro culture/work/status is not consistent across teams. But the macro culture is strong.