I really liked the number/name system in SF when I was living there. It was very legible, even if you didn't know the named street, you could quickly dial in to the location by scanning along the numbered street.

Where I live now the streets are 'wavy' and have very long names, usually a person or an auspicious date - and often multiple instances quite nearby. Almost useless for navigation.

I also miss the grid system - traffic naturally gets calmed down, and you are never too far from a cross walk.