Pros
Lots of training, free food, bonuses, trips to Amsterdam for those interested, free "swag", culture. Never a dull moment. Keeps you on your toes. Great for entry customer service gaining skills.
Cons
Long and tiring hours, very little down time or personal time, favoritism by management, unhappy agents, unhappy customers...LOTS of complaints from people all around the world. Its all on your shoulders. Promotions are near impossible if you're not a kiss up even if you have consistently shown to be a great employee with high numbers and drive to advance. If youre not a social butterfly, say goodbye to ever going anywhere in this company and getting no help. Booking.com doesnt feel like a long term place to work. I was there 3 years nearly and had 4 interviews to advance to another position and was constantly turned down. I left because I was tired of the rat race.