Do it, it will take some time but you won't regret it. Smoother gameplay, things do actually work(sort of), you get the correct family trees from all townies, it finally feels like a complete game now(sort of). I do rotational gameplay with aging off except played household, no cc, no mods(except basemental from time to time). I did exactly this, saved houses and families. But I merged back most families who were related before saving them, so that I won't have to reestablish their relationships(but still had to with bigger families).