Pros
Flexible time off, good work/life balance, brand new office
Cons
Promotion can happen only once per year after 18 months you are in the same position. The process is not transparent. Even though you might have all the skills for stepping up to your next role within your team, you need to wait a couple of years as there are already people waiting before you. I saw few exceptions and those were based on internal politics. Internal mobility is not supported if you want to move to a higher role. During the promotion process they consider only the experience gained with BlackRock. For instance a person who started his/her career at BlackRock and spent there 6 years has higher chance to be promoted compared to someone who has 10 years of experience outside BlackRock and only 2 with BlackRock.