Well there is that whole thread…
As for my play experience with her it’s been, her ability turns what is already bad for the Corporation, the Runner stealing an agenda, into an even worse situation. Additionally, it turns the what the Corp already considers a bit of a tempo hit, scoring an agenda, into an even bigger tempo hit by having something bounced back.
Example from a game I recently played:
Legwork, steal an agenda, bounce a face-down Jackson, run archives, steal 5 more points from archives, gg.
Never mind the fact that there are plenty of times where you top deck an agenda off of R&D first turn, bounce HQ Ice, Account Siphon, purge tags, then proceed to laugh at the Corps misery.
So while Andy will consistently set you up in a position where you can win the game, Leela’s ability actively helps you win the game.
Granted, against glacier type deck, it can be more difficult. But I feel that reflects more on the Criminal faction in general, which tends to be better in the early game anyway.