Generally love my national rentals. Unfortunately this time I got a vehicle that someone had been smoking in :( National did did a good job of trying to cover and clean it....but when you have allergies like mine that doesn't cut it. Every day I got in it I could smell it more and more. So now I head home with a sore throat and stuffed up and hope it doesn't turn into a sinus infection :( I'll be more careful in the future with any car that smells strongly of cleaners when I get in.