Simply exquisite!
Stealth is my favorite game genre. And I think there's so few takes as fresh as this!
The "2nd person" perspective is on point for a reinterpretation of the usual "intel gathering > time it > execution" game loop. It seemed to aleviate the player of the ironic robotic precision that avatar bodies tend to assume on this context.
The fact that the basic terminal hacking gui actually leads to the ascii presentation is what seals the whole deal. Not only it solves the ever present need for clear information for communicating stealth challenge, but it also creates a mystique suited for the narrative presented; We get to care for the characters motivations, we get to know the place and opposition, while the minutia of any other art direction with higher fidelity is dispensed. It is distant but warm.