Pros: The company is firing on all cylinders: building a great product with disruptive technology that customers love in a huge market, executing incredibly well in operations, marketing, and sales, and reaping the rewards for all of that, truly exceptional growth that few companies in history can match.

Cons: The company is too big to really be a startup any more. I'm not sure it would be as good to join now, given that the inner circle/clique of early employees is already pretty well set.

Pros: Solving challenging technical problems (e.g., concurrency, networking, high availability). A strong testing mindset. High-quality C++. Strong command of agile development. Talented engineers.

Cons: Often using old/deprecated software. Quality of code, except C++, is pretty poor. Code duplicity and tech debt. Unreasonable work policies.

Pros: Good compensation and benefits. Not a sweatshop.

Cons: A place where arrogance, elitism, and know-it-alls became the only way to thrive. This caused all the really good engineers that are fun to work with to leave. Sadly, a place where good ideas go to die. The only way the execs seem to try to innovate is by acquiring companies, and they fail at it. Stock value is still in the same range as the IPO: a litmus test of the failed vision. The product was great, but the tech is old, and the world has moved on from external storage arrays.