I've given Factorio a wide berth. It seems risky for me to sit down with this game. The strategic rpg/simulator addict in me really wants to :).
Oh I dunno, I let it take over my life for a couple months, took it as far as I'd care to, and then moved on.
I actually prefer Dyson Sphere Program over factorio at this point.
They're addictive, but for good reason and in ways you don't realize until you experience it.