Pros: Growing network load. Growing staff. Amazingly effed up technologies that you'll never guess could work. Easy to make 10x difference to random processes. Extreme troubleshooting culture, good for true full-stack troubleshooters. Very good people to work with. Great work-life balance (lots of kids on site during spring vacation; no eyebrows raised; working remotely post-school hours is common).

Cons: High management is non-technical and doesn't stay too long, so lots of money/human lives are poured into "projects" that never could succeed, while the essential work of paying off technical debt and scaling the system for each year's new internet customers is done in the shadows by grumpy people that get poor reviews.

Pros: Interesting problems and challenges, good people, great CEO.

Cons: A bit stuck in its ways. Could learn from new processes. Too rigid in workflows.

Pros: Get to do some innovative work.

Cons: Direction keeps changing very rapidly.