Had to travel on my expenses to Paris to be interviewed by a young lady that was so busy she had no questions to ask. It seemed we Didn’t even had an appointment. Unprofessional.

It was casual, sometimes professional. The person who would want to hiring is clear, everything looks okay during interview. Be prepared for unexpectedness. Depending who is the person, the background and experience. Speaking to different people in office gives you a better idea how is the company like.