Terrible. Only one staff member for car collection, with five groups waiting to pick up cars. We had to wait until everyone had finished before they let us leave the parking lot. What kind of logic is that? The car was given to us with an empty tank and must be returned empty. How are we supposed to manage that? We ended up giving them half a tank of fuel for free. The windshield washer fluid was also empty. The staff member at car return didn't even speak English. Absolutely ridiculous. Avoid this car rental company at Izmir Airport.