Pros
There are a lot of smart people working at a lot of good companies, but what has made Quantcast different is the level of genuine cooperation among very talented individuals around common goals. This is much harder said than done. The result is that it's clear what you're working on and why. There is a great sense of purpose and optimism at Quantcast to carry out the company's shared vision. There's a good balance between senior and junior talent.
Cons
Quantcast is transitioning from a small to a mid-sized company. There's some legacy that come with that but the management is visible in trying to adapt to the typical cultural and communication challenges that come with that. It's also a fast-growing company which means that there's far more immediate opportunity than resources sometimes allow. Overall, decisions are handled well but does mean having to be creative within constraints.