The car rental is just behind Marseille Airport. You can see many rental companies right after you exit the airport, and Europcar is very conspicuous. The paperwork takes quite some time, about 15 minutes per person. The pickup process is very convenient.

There is a dedicated building for car rentals outside Nice Airport, with several rental companies having counters inside. Europecar seems to be the most popular in France as the queue was the longest. We waited almost an hour to get our car. The staff, however, were quite friendly. Overall, we were quite satisfied.

Unfortunately we don't get the exact car that we booked thru easyrental. Europcar had gave us a different car.

Ok

As above. As we were in a resort often used for people going skiing I would expect these to come as standard as a matter of safety.

Like: The staff that dealt with me on both legs and the location of the office and car park.