Pros
QuinStreet is a challenging and interesting place to work. The company has a very performance-oriented culture which works great if you are ambitious, open to constructive feedback and hard working. As a company whose main product/service is digital marketing it is one of the best places to become an expert in customer acquisition, the various digital marketing channels and how big advertisers think about their digital marketing budgets. You will learn a ton and it will give you a pretty broad view of how the internet ecosystem works. QuinStreet also has a promote-from-within culture and rewards folks for working hard and contributing. There are good opportunities for advancement over time, and people feel valued so they stay (often 5+ years). The company navigated a big transition in its business (shift away from Education to Insurance/Financial Services) over the last 6-7 years which was hard to do and led to low morale at some points. To the credit of a lot of dedicated and hardworking people there, the business remained fairly stable throughout that process and has exited that transition and is now growing quickly. I would work there again.
Cons
The flipside of the performance-oriented culture is that your professional development and success at the company is evaluated based on the impact you are making. This can mean you won't get a lot of recognition for working hard on something that doesn't drive impact, and that if you are in a junior role it may be hard to make a big impact in your first year or two. You have to be open to feedback and enjoy solving hard problems to do well there. As a company in Silicon Valley where startups are continually raising tons of money from VCs and trying to dazzle with their innovative ideas, QuinStreet can feel a little stodgy. QuinStreet has historically been fairly quiet as a company, and has done virtually no PR or brand-building - which makes it a bit hard to understand from the outside. People who have been working in the digital advertising industry for a while will know QuinStreet, but it may not get much name-brand recognition outside of that.