Pros
The best thing about Vulcan is the variety of projects going on under one roof. If you can slip out of your job-induced depression long enough to notice, you'll find that other people are doing exciting things there. (But chances are it's not you.) The other best thing is the location, right between Seattle's ID and Pioneer Square. Great food, great walks. The building is also a very interesting space with art worth looking at, and there was a time when Vulcan invested in stylish modern furnishings for the offices. Good people do come through Vulcan, and you might be lucky enough to have the opportunity to work with some of them. Unfortunately the good ones don't stay long, usually because they feel stifled or frustrated.
Cons
All decisions in the company are made either by Jody's team of attorneys and HR, or by Paul. Just think about that first group for a minute. These are people whose purpose in life is to ensure that Paul doesn't get sued. Oh yes, it's as free and creative as you might think! Now think about the second decisionmaker. Read about him and decide if you want him guidng your professional life. When I worked at Vulcan I felt more like a lifeless number than I have at exponentially larger companies. Even worse, I felt policed.