Book Sixt car rentals in Denver

Pros: Clean car and responsive customer service initially

Cons: Up-charged me for an "upgraded" vehicle without telling me in DEN; it wasn't even an upgraded vehicle, it was the vehicle I booked (for $360), but they charged me $700 after the fact. Looking to get this resolved.

Pros: Absolutely nothing.

Cons: I rented a van from Sixt for 5 days. My family was traveling from Denver into the mountains after arriving to the airport. We had to take a train downtown because the booking was not made for the airport. I had called to change this, but they told me it was not possible.... the day we arrived they confirmed the car was ready for pickup. We arrive by 430pm and they inform me there is a hold on my account. I asked what this meant and they informed me ‘they have no access to see why there is a hold and they also would not be able to give me the rental car.’ They told me ‘I had to contact their corporate customer service to resolve this issue’ - but they were closed because it was Sunday afternoon. They left us stranded downtown with no rental car and no explanation as to why they wouldn’t give us the car we prepaid for and had confirmation of reservation.

Pros: Nothing impossible to reach cancelled reservation and then sought to increase price- just an awful experience terrible customer service

Cons: Everything

Cons: It wasn’t made clear that the vehicle I rented wasn’t AWD and I was required to pay a significant up charge to get AWD.

Pros: Nothing

Cons: When I went to make the reservation on YOUR site, instead of showing me a February calendar, it pulled up a March Calendar. Since the days of the week fell on the same date, I mistakenly made a reservation for March. Then Sixt would not refund my money even though the reservation was a month away.

Pros: Didn't like anything

Cons: Give me my refund for not using the car