Overall, good for a short stay for an early flight. It's a short walk from the Vitrolles-Airport train station, which is the cheaper option to get to/from the city, if a less convenient timetable (the last train is usually ~8pm, so don't plan on having much of a dinner in Marseille and there's not much to eat within walking distance). The exterior of the hotel is quite shabby, but the interior and our room looked recently redone.
We arrived relatively early to check in since we had to drop our rental car off in Marseille. The lady at the front desk was surprised, but friendly and allowed us to check in without issue. There were a number of set stains on the sheets and the shower drain seemed a little slow, but the bed was comfy. The WiFi was solid as well, which was helpful in rearranging our delayed flights.
We took the 5am shuttle to the airport, which arrived on time and was free. The driver was friendly as well.