Our experience was good. After reading a lot of reviews about extra charges, we were very careful to inspect our car for existing damages which were not noted on the car information paper. We took pictures and videos and had an agent come and verify the extra damages we found which were not listed. Aside from this, the personnel were very friendly and accommodating. The price was very reasonable at around €25/day for a compact, and we took the extra insurance at around €20/day for the peace of mind since drivers in Marseille are quite reckless (hard to find a car in the city that doesn’t have at least 15 large scratches and dents). Do your research and do your part to ensure that everything is in order before leaving a rental car agency - whether in marseille or anywhere else. Also be ready for a large guaranty by bank or credit card (mine was €600) which is generally released within 3-5 business days.