The NRaas system is absolutely amazing. Every single thing about story progression is customizable. Honestly, I can't imagine having any game with that as part of the vanilla system, especially things like how often things will trigger, but Twallain made something truly amazing with his story progression. NRaas's only real failing is how daunting it can be, but it really can accommodate just about any play style. Awesome Mod is good for people who prefer TS2 style play, but it just doesn't have the same type of customization.
Edit: It would be far too much to hope to have anything close to the type of customization NRaas SP has, but it would be nice for a game to have a framework that someone could build on to make something like that. MCCC is incredible, don't get me wrong, but I don't think Sims 4 supports the same type of customization that Sims 3 does.
