It's okay, small company with strict rules

Good service and nothing to complain about. It just feels like a smaller company compared to the bigger ones but the price is cheaper.

I rented a car at Frankfurt Airport in Germany from Dollar Rent-a-Car, sharing an office with two other rental companies. There were few staff members, and the queue was very long, taking three hours to rent the car. We traveled through four countries: the Czech Republic, Austria, Switzerland, and Germany, and had to pay an extra 50 euros for crossing borders (this was not a highway toll but an additional fee charged by the rental company). This fee was not mentioned in the rental agreement.

Because I picked up the car two hours earlier, I had to upgrade and pay an extra 200 euros, and the insurance cost another 200 euros. Plus, the person who received the car when I returned it had a bad attitude. It was not a very pleasant car rental experience.

The staff was very friendly and attentive. However, the car given to us, while having low mileage and being relatively new, had some issues during driving. The RPMs would spike unexpectedly even at speeds of 50 or 60 km/h, reaching 3 or 4, which made me hesitant to accelerate. Additionally, there was an extra charge for diesel cars, costing 5 euros per day, which wasn't very economical.