Invited for 1 interview, which was aborted after 15 minutes due to a meeting conflict with many apologies. After that, invited for three more interviews, with 5 people in total. Atmosphere was always pleasant, questions were demanding and very professional. I very much appreciated the professional follow-up, especially after the "faux-pas" with the aborted interview. I also particularly valued the high standard of HR - in terms of (challenging) questions while keeping a comfortable atmosphere, and quick response times.