Pros
This company is customer focused! Everything revolves around what is best for the customer. If you come from a legacy enterprise environment, this matters, and makes you feel like you have an impact. Toss in a great comp plan with comprehensive benefits, awesome work environment and amazing people, you have yourself Seattle's hottest startup. Oh, and they have every conceivable office perk known to mankind. You will be happily caffienated, have a bitchin' Macbook Pro and be in the heart of the city in a gorgeous office space with sweeping views of Puget Sound. What more can a nerd ask for?
Cons
Org structure is flatter than the first map of the world. :) If you are a self starter, you will be fine, if you are not, this may be a challenge for you. I love it!