We’ve just been to Moraira and used Hertz at the airport. We did take out extra insurance with Questor.
The experience was really good. At the pick up they said, no need to rush out in the dark and look for damage, do it properly in the morning in the daylight and provided a damage report via email. (we still went over it carefully before we left but apart them marking the wrong wheel as kerbed it was accurate).
Drop off was a simple key in a post box which is not immediately obvious but is to the left of the garage Hertz office.
Way nicer experience than some of the cheaper companies that we have previously used.