This is a very interesting card. Play it turn 1 or 2 to force the Corp to decide if they want to defend HQ or R&D and / or give you potential free access on the other Central especially if no Hedge Fund was played so far. On top it takes away the surprise factor and facecheck punishment, additionally in the early game crims can use Special Order to fetch the correct breaker to increase the pressure. On top it might enable Emergency Shutdown so corp rezzes ICE on Remote, you run HQ for free and derez it. So in this it's similar to Maxwell James and both have different purposes.
Playing against Archer this is nice, does the corp want to rez it, when you are not facechecking it? Probably no and if yes, it might prevent you from getting in, but without the corp getting 2 creds and you loosing potentially 2 breakers.
When the Corp tries to score an Agenda, like: Install, Advance, Advance, this card shines. You know they will likely use their creds to defend the remote. Usually you use this point in time to get free / cheap access to HQ and / or R&D. But with an FAO in hand you could use it put them in a lose lose position. You rez the ICE I get the agenda, you don't and you might need to find another ICE to protect this server. On top if the runner runs on a central in such a situation, the ICE might be crippling him and it might become impossible to run the remote (e.g. rezzing Tollbooth might make them lose the creds to install Paperclip & break Vanilla, but not anymore with FAO).
Also in the late game it can create such situations as it might remove 1 ICE from a central and you know the one rezzed is easy to break. But of course there it's more important to wait for the right moment to use it. Of course Los: Data Hijacker makes this even more interesting as it means he get's his ID ability creds without running so it's an auto include combined with Rubicon Switch he can get crazy.