Personally haven't been at SMF, but in general, I wouldn't pay $100-$200 more for Hertz over another major firm (Would personally avoid smaller firms like Fox, but that's just me. Hertz doesn't really have anything special to offer over Avis, National, etc in terms of cars aside from the dream collection. Service is definitely YMMV situation depending on location & employee. I say go for Avis or National if they are $100-$200 cheaper for the same period of time.