There are already two good reviews for this card here, but I think there is another relevant combo card that is worth mentioning. Escher can set up a great server for Atman to run through. While corps try to address Atman at the deckbuilding stage, a lot of their favorite ICE still line up at strength 3 or 4 (Eli 1.0, Ichi 1.0, Lotus Field and Data Raven/Architect, Wall of Static, and Caduceus).
It is very possible to see 3-4 of these ICE rezzed by late game, and stack a nice set on R&D for some cheap access runs, or blow through a scoring remote for just a few credits.
Also, since Atman is an AI breaker, it is worth mentioning that you can further dump the AI-hate ICE (Wraparound, Turing and Swordsman) onto unimportant servers and clear the way for your AI suite, which is more of a mid-game move. If this card were 3 influence, I'd use it in my Noise Faust deck.