Had a HR screening, then met in person (pre covid) for the in-person interviews. I had a panel interview with 2 VPs and 2 Senior Analyst. They asked pretty standard questions until one of the VPs asked me about my current firm (which was her previously firm 10+ years ago). I asked her how her experience differed from Aon vs her previous firm, in which she said "[Old firm] is an interesting place..." and left it at that. Then she made a couple weird comments on her previously colleagues. One of the most unprofessional places I have ever interviewed for. It made everyone else in the room uncomfortable but no one spoke up about it.