280 is much, much, much better. Though it took a little longer when we needed to go to San Mateo every day (forver ago), I always took it. Less traffic, prettier, fewer big trucks, and you get to see cows, horses, and sometimes things like storks and deer and rabbits.

My drive to work is now 7-8 minutes on mostly small roads, but sometimes I drive up 280 just to see all the grass and hills. Those "scenic viewpoint" turnoffs are really worth it, too.