Mr President: Is GMT's sprawling solitaire boardgame unimpeachable or a one-termer?

Great conversation on Mr. President. I’ve gone from “not interested” to “on the fence”. The amount of errata is a concern, but I’m curious on how the gameplay holds up as the game progresses. The complexity/amount of systems makes me wonder if the gameplay will disintegrate as the game progresses. Sounds like a fascinating idea and ambitious vision for a game, though.