I Squared Capital

Some things I'd think about if I were you:

1. Would you be willing to potentially stay in infra for the long term? Investments by infra funds are definitely getting more diversified in recent years, with the definition of infrastructure being pushed to include things like digital infra, social infra, infra-adjacent services, renewables, etc. That being said, it's still a relatively specialized path and it might be an uphill battle if you want to move to another sector or exit finance altogether (in which case having a known name like a BB would be very helpful).
2. Are you willing to spend at least two years in Miami? Miami is known as a fun city but working there could feel pretty different than just a vacation. It's more suitable for certain demographics / backgrounds than others and you need to assess that for yourself. 

Those two considerations aside, ISQ is a great place with very sharp people. Hours could be long but you'll get good reps with a growing fund and what appears to be great deal flow and returns. If you're aligned with the strategy / sector, it’s a very solid place to start.