Booking.com interview questions

I applied for the job through a website, then I had the first contact through e-mail. After that I did a 30min phone conversation with the HR and later another 30 min talk with the design team. Later they invited me to a last interview at their office in Amsterdam, paying for flights and hotel. I went to Amsterdam and met them in the office. Such nice people. I talked with probably 8 different people from different areas.

Applied on line and an inside worker made me the referral too. Contacted by phone after few weeks for planning a phone interview with an HR manager. General questions about my background and my interest for the position and the company. I have been called for a face to face interview with 2 team leaders. Behavioral and business savy kind of questions the atmosphere was really informal but still professional. 2 weeks later last interview with 2 operational managers, almost the same questions than the previous one. I didn't like the overall experience because at the end I don't understand why 2 level of interviews with almost the same questions for a position where in the job offer was not stated the requirement of experience but during the last interview one of the manager made me understand they were considering CVs with a certain type of experience! so why waste my and their time?