Pros
Everyone I've met here is sincerely nice. They help one another instead of throwing them under buses. I've not heard people complain about one another behind each other's backs either, even people who have been let go. The bar is set realistically on performance. You can choose to bust your bottom for a promo and be rewarded, or you can put in moderate effort and still get by OK. Projects are not thrust upon you, you are allowed to push back and have some autonomy. They are dedicated to charity in a very deep way. It's really impressive how much time and energy is devoted to non profit and charity events.
Cons
They haven't really decided if they are a tech company or a travel company. Hence, tech people may not be used to the politics of cross-brand initiatives. They are NOT customer centric in the least. Nor are they developer centric. They seem to be lost in the weeds, but have been addressing this lately with the ouster of the previous CTO. They seem to want to be more customer centric, and Dara proclaimed that Expedia is a travel company at the last all hands, so I guess that's the goal.