Pros
The building is great, the hours are flexible and the people are very nice. If you are actively engaged, anything you want to learn about the company you can learn, and they are very open about the company's performance. Vacation and benefits policies are great, and being a vacation company, they are very understanding about time off and outside interests. It's a culture focused on "what you contribute and deliver", not "how many hours you work".
Cons
Training and development, while talked about, is sometimes lacking. People are willing to support you, but development is secondary and self-serve. Similarly with diversity, the company is definitely supportive but not necessarily proactive( the strong women initiatives are the exception). Compensation is decent but not generous enough for high performers to retain top talent. Expedia seems to often lose employees to higher paychecks and gain employees through better work-life balance.