Terrible, terrible fleet! And the worst customer service in the business!
We reserved a midsize SUV - they only had 2 and each smelled terrible (mostly of cigarette smoke) and had around 60,000 miles each. Instead they gave us a large SUV with an $80 upgrade with XM radio and satellite navigation. As soon as we drove of the lot we realized it didn't have XM or navigation. The back seats were left in so it wouldn't hold our luggage well and the steering had problems. We told two Hertz clerks, one at our hotel and one at the adjoining hotel that we wanted to switch the car and NEVER got a call back in the 5 days we were there. We called Hertz customer service and the manager was unreachable - we let a voicemail message but NEVER got a call back. We called when we returned home and were cut off.
Terrible, just terrible, customer service. Beware.