So far everything was OK. But 2 guys at the office and no one speeks english ... just a view words. They had to call somebody on the phon to tell me all about it. A little strange for a car rental office at the airport. But they were very friendy and helpfull. And when I droped the car they gave me a ride back to the hotel with no extra costs.
But when you pick up the car they have to charge 8000 pesos for refund. But no problem to it back.