Why is MCCC so great?!

I love that Sims will get married and have children (occasionally in that order) without me needing to step in and force things. I've noticed that Sims tend to have more children when my played Sims have families, which is nice so my children will actually have others to meet when they start school. Another feature I like is that orphaned and neglected children will be adopted by other families (usually relatives) instead of being deleted from the game -- I don't have to worry about my children having a best friend disappear without a trace. Came in handy when Seasons was killing off Sims who went jogging in winter.