If you are not too fussy about general cleanliness, I do recommend Papa's accommodation.
The mattress was comfortable, the bedding clean, and I slept quite comfortably.
The apartment is really central and within three stops on line 3 you reach the lake then on into the heart of the old city. From the airport, type rue Hoffman to locate it more precisely, and you get there in less than 20 minutes.
I have a lot of respect for Papa who comes from Senegal and works long hours.
Good overall impression.