This was my first time renting a car, and the process was very efficient. The parking lot was about 200 meters away from the hotel where we were staying. I didn't expect that my first car rental would be upgraded to an Audi A3 for free. The car was very new with only 10,000 kilometers on it. The interior was also very new, and we drove it for three days. The overall road conditions in Serbia are quite good, though there were a few sections under repair. In general, driving in Serbia is very convenient. If you plan to drive into countries like Bosnia and Herzegovina, you will need to pay an additional fee. Returning the car was also quick and easy. Overall, this self-driving experience was excellent.