Following the usual test I was invited to an assessment day with 2 senior associates. A very friendly interview which also included a small case.
Following this I was invited to a final interview with two partners. This was a very hostile interview where the interviewers wanted to understand why they shouldn't hire me. After having met and spoken to Bloomberg representatives at multiple events, this was a shocking experience.
Following this experience, I also spoke to a friend who had doen the same process. They had the same experience. Going from really wanting to work at Bloomberg to never considering it again.