Pros
Good benefits. Flexibility to work from home. Great team at the ground level. Great collaborators on the teams I interacted with cross-functionally. Basically, a great place to work at the individual level and one or two managerial levels above. I worked for the Isilon Storage Division. The people I worked with are/were passionate and quality-focused. They built great relationships with other teams as well.
Cons
Isilon was acquired by EMC and then EMC merged with Dell. Prior to the Dell acquisition, our team was cited as an example for other teams to model and our content strategies were adopted by other teams. After the Dell merger it became clear that our contributions were no longer understood or valued. I was laid off by someone who maybe knew my name and salary. My direct manager wasn't consulted in advance. I can't recommend working for a company that makes decisions based on criteria that's unrelated to skills, contributions, value, and knowledge of the product. No job security here, regardless of the quality of your work.