Similar to the above pro of a good team, there are some ‘bad’ teams that exist as well. These teams usually have poor managers or are overworked/understaffed and these two things tend to go together. This would make you hate Aon and is why some offices have a high turnover rate.
While you can certainly grow with Aon, you have to overly sell yourself and then hope that the stars align. Once you get to a senior contributor level, there really are no clear guidelines on how to progress your career. A lot of people just become satisfied with a moderate increase in each year because they have no idea how to get promoted to the next job level.
There is Aon University for educational courses, but there is very little training for your specific role. The majority of the training is job shadowing for a few weeks before taking over the administrative paper/computer work that does not really make you a better insurance professional.
Diversity and particularly the amount of people of color in leadership positions are lacking significantly. That said, there have been some committees formed and programs implemented to address this, so I’m hoping my opinion will change over the next 12-24 months.