I would give them a 0 if I could. Dishonest, fraudulent. My family rented 2 cars through price line for SIXT for a total of 196/each. Upon arriving in Puerto Rico, and being transported from the airport to their facility, they insisted I purchase insurance though I already have it through my own insurance company. They are dishonest and prey upon traveling families who really have no choice once you get to their facility away from the airport. Then with no way of getting any other form of transportation, you are at their mercy. They charged me 442.08/car in addition to the 196 I had already paid. Since our return home, an additional $309.12 fee was charged by SixT for an unknown reason. One of the cars broke down and required towing due to no fault of our own. It overheated on the highway an obvious mechanical issue. Upon calling the company they assured me they would send a vehicle to pick us up along with the luggage and the vehicle. They sent a tow truck and told 3 of us we had to ride in the vehicle being towed (we had a child with us). We declined the illegal and unsafe mode of transportation and waited an additional hour for my husband to get part of our party to the airport and return for us. Meanwhile we are left stranded on the highway by SIXT. During our phone call to them, the women said "You damaged the car". She had not seen the vehicle, and we explained we had not damaged it in any way and that it was a mechanical issue. Clearly this is their MO to claim damage when it did not occur. I was later charged $1000 for damages, but we did not damage the vehicle in any way. We have photographic evidence and videos of the cars at pick up and upon surrendering them. I signed a $500 deposit on each of the vehicles which I was told was a deductible in case of damage and I would get it back upon returning the car. One of the receipts for deposit had an additional $500 added (by hand) to my receipt after the fact making the total $1000. I have proof that this addition was added after my signature. I did not authorize this and it is illegal for them to charge for something I did not authorize. This company is a scam Stay far from them!