The location is absolutely perfect next to the Eiffel Tower and central to other parts of Paris. Apartment is clean and has all the basics you need, particularly if you’re only staying to sleep and spending the day sightseeing.
There is no air conditioner (which is noted in the listing), but leaving the bedroom window open at night provides a pleasant temperature, at least at this time of year.
Note that the warning about the six flights of stairs is serious: they are pretty long flights. We were prepared going in and were able to manage bringing up one suitcase and some other bags, but I wouldn’t recommend if you have a lot of heavy luggage, and/or any health conditions that could make it difficult to go up and down.
Also: the stairs are dark in some areas, especially at night. There is a light you can turn on, but you’ll probably need to turn your phone’s flashlight on to make it up the last few flights.
That is really the only downside to the place, but again, we knew about the stairs when we booked (description is very clear) so we were satisfied.