This was my first experience with Sixt and I was very impressed. I had reserved a standard SUV for 11 days. The price quoted was less than what the major rental companies would charge - with discounts - for what they called a standard sized car but what I would call an intermediate.
When I arrived at the airport counter I was greeted with a pleasant smile from the agent. He said I have some good news and some bad news for you. He said the bad news was the SUV I was expecting was not available but the good news was that he was upgrading me. He told me I was in for a surprise. When I asked for a map he said it would not be necessary since the car had a navigation system. He then handed me the keys and I saw it was for a Mercedes Benz SUV! I went down to pick up the car and since I had never driven such a car it took some time to get familiar with its instruments. An agent came over without being asked and showed me all that I needed to know. I was off and the time spent renting a car was far less than what I was accustomed. The car was immaculate and in good running order.
The return was effortless and a receipt was e-mailed to me by the time I got to the gate. The individual handling the return took our suitcases out of the back and inspected the interior to be sure we left nothing behind.
For me this rental company has a great business plan. Provide quality rental cars, at competitive prices, and great customer service.