Pros: Picking up the car in Germany was a very easy, straightforward experience.
Cons: Trying to find the after-hours drop-off point was extremely--and unnecessarily--difficult. There was no "Europcar" sign visible anywhere on the outside of the station so I circled several times before pulling into an unmarked driveway. Amazingly, it turned out to be the right driveway because at the bottom of the ramp I noticed a small "Europcar" sign. I then drove through the garage following the "rental return" signs, but there was no central rental return area or instructions for dropping a car after hours. I drove through the parking lot for about 15 minutes looking for a drop off area then got to a gated exit where I could go no further. As a result, I parked the vehicle in a nearby vacant Europcar stall. I then went looking for the office on foot, finding it after a full half-hour of walking the entire station. The office was (obviously) closed so I telephoned the help numbers on my agreement. The person I was ultimately able to speak with told me to simply leave the keys in the mail slot. But there was no mail slot. So I took the key to my hotel and returned the next morning to check-in the car. It was a frustrating, tedious experience and the worse possible way to begin a visit to Paris.