They contest it is better in some ways, and I think they may well be right. Humans lack the ability to concentrate for any real length of time, and repetitive tasks ease us into mindlessness. Computers can hold speed and distance with far more accuracy than a human, never gets bored or angry or drunk and can recognise patterns. The patterns are actually there in the highway code.
My one question is this - Would the passengers be liable for any accidents? Would Google be liable? It seems like a mess. I have a good driving record and enjoy pretty cheap insurance rates ($26/month from Insurance Panda.. woohoo!). I also enjoy taking my car out for a spin and enjoying the 'freedom' of being able to drive anywhere. Will the driverless car allow all this? If not, I'll have to pass.
IMO.. Until they can ensure that there are no humans taking control of the wheel, insurance will be needed... at least uninsured motorist. Who knows? Maybe insurance as we know it will go away, replaced by any number of models that would more accurately represent the new risk distribution.