This, I've found, is the ideal game state for Los.
It's also extremely difficult to achieve. Not to mention that there are decks, like AgInfusion, that also operate well from this board state.
Had a long conversation with someone after they wrecked Paradise Los (@tolaasin's variant... I told him I'd take it out for some testing.) Turns out having a Fairchild 3.0 on R&D, HQ, and the only Remote is really bad for Los+Rubicon. My opponent apparently also was trying some Los+Rubicon shenanigans.
We debated about Compromised Employee. I tried it briefly in the Andy OCA build, and retired it pretty quickly because it doesn't help with setup, and doesn't really help keep the board state de-rezzed. As an example, pretend that you have all 3 Comp Employees, Keros, and Rubicon Switch, and Abagnale. If the Corp rezzes FC3.0, you gain 5, spend 7 to break, spend 6 to de-rez and gain 2. Net cost: 6 credits to the Corp, 6 credits to the Runner. And two clicks for the Runner. (One to run, forcing the rez, one to Rubicon.) Basically you clicked twice for a tagless Vamp. Without other Econ in play, repeating this is not a winning strategy.
Argument: "But you get a successful run off of it!"
Counter: This is only true if FC3.0 is the only ice on that server. Which, with 6 cards installed costing you 15 credits, is extremely unlikely. If FC3.0 is not the only ICE on the server, you have to pay more money to break it, and cannot Rubicon both ICE if it were just rezzed, and don't get Los payout if it was rezzed... Basically, if there's other ICE there, you're paying more credits for the Successful Run. We can essentially ignore that transaction because we're looking strictly at trying to keep the Corp's board de-rezzed off of Compromised Employee.
Argument: "But Vamp is a good card and a good strategy."
Counter: Yes, but not unsupported Vamp. Also, Vamp takes only one click. Vamp is usually supported by Mopus (or sometimes Congress drip) which is arguably the most powerful Runner Economy Engine in the game. Mopus also takes one card and 5 credits instead of 5 cards and 11 credits. (The difference in numbers from here and earlier is that I'm not counting Abagnale here, since I'm looking at the Economy Engine.)
Basically, you have to have some form of Economy Engine running to support de-rezzing the Corp's board constantly, and Compromised Employee/Keros/Los is not enough. 7 credits/turn doesn't look good when you have to break the ICE as well.
That said, 7 credits/turn is a LOT. That's Congress-level economy. The reason it's not good enough is that you have to spend that money to de-rez and break. This happens to suggest that the deck is very good at dealing with Gearcheck ICE, but not Taxing ICE.
I believe the deck might need to adopt a philosophy similar to Dumblefork, where it really really doesn't want to break expensive ICE more than once. ICE Destruction might play well into our strategy here. After all, it's easier to keep the Corp's boardstate de-rezzed if they have a smaller boardstate...
(Going to look into En Passant + SoT strategies, instead of E-Shutdown/FAO.)