Hi all- I need some opinions and sugestions for my upcoming car rental in CVG. Here's the situation

Dollar
- $21.99/week
- Full size
- No navigation system

Hertz
- Approx. $210/week
- Full size
- Neverlost Navigational system

Even after my odyssey (sp?) in getting the $21.99 rate with Dollar, and even though I'm armed with a fax from customer service, I'm still a bit wary. After using Hertz Neverlost for a week, I'm...attached. It includes everything you could possibly need, gas stations, etc. It makes traveling so much easier and less worrisome, and I don't have to spend the whole time awake staring at a map! It comes with a price though. On the other hand, I have good detailed maps of the Cincinnati area, and directions from Microsoft's Streets and Trips.

Here are the possibilities I'm considering...

-Cancel Dollar and go with Hertz
-See what happens at the counter with Dollar, and go with Hertz if things don't work out
-Persist on the $21.99 rate and go with Dollar

Any suggestions/comments/questions are appreciated.

Thanks!