Pros
Great place to work, really good culture and working environment, didn't feel like going to work. There is always some kind of staff event or BBQ, very sociable place to work. Offices are very modern and trendy. Xbox's, table football etc. Some good benefits and discounts on travel.
Cons
High turnover, I saw many people come and go in my time and a lot of unjust sackings. Heard a lot of people were let go because their "boss didn't like them". This happened quite a lot if the persons face didn't fit. Unfortunately because of the nice environment and the laid back atmosphere you had a lot of dead weight in the company, people who were happy to just sit back for the ride. I met quite a lot of people who either did nothing or didn't really know what they were doing, they'd just been there for a long time. Came in late, long lunches, left early and didn't really do anything whilst they were there. The atmosphere although good to work in, produced a lack of urgency, not something I was used to and found to be quite frustrating when you needed something done. Also the London office is too reliant on the Bellevue office, they need to break away, take more control and be more autonomous.