The reason to stay at this airbnb is obvious. You are a minute away from the Eiffel tower and can stick your head out the window to watch it light up as often as you like. If that's is an important part of your trip (which it was for mine) the place is worth it. Philippe was also very good to deal with and so was his son Adam.
However, I wouldn't recommend a long stay. The place is small, up six flights of stairs (which never had lights on). The bed is a pullout couch, and the added fees were steep for staying there as long as we did.
Overall it's a below average place with a fantastic location. It was worth it for the 2 nights we spent there.