I did think, like Leela, Nero’s ability is one that needs to be experienced on the table too see how it is. I was unsure about her on paper, then loved her when I finally played! That said… Leela’s ability will fire in a vast majority of games. Unless the corp manages to rez everything, or they kill you in the first few turns, someone will be stealing/scoring agendas.
Nero has one of those abilities which may never fire, but may affect both the corp’s and the runner’s behaviour to give you an advantage. More of a Quetzal than a Kit?
I feel Nero wants to be running very aggressively from the first turn. As such, you want maybe a Gabe-style deck that can now get going without the need for Fairies/Knight/whatever. Either that, or they go full niche with Reflection (his console), Au Revoir, and The Turning Wheel (which will get tokens on a run where you jack out).